one aspect of the present invention relates to a compound or pharmaceutically acceptable salt thereof , comprising : r 4 is h or c 1 - c 6 alkyl ; r 5 is h or c 1 - c 6 alkyl ; r 5 is c 2 - c 6 hydroxyalkyl ; z is — nh - aa 1 - aa 2 - aa 3 - aa 4 - aa 5 - aa 6 - c ( o )- l or — nh - aa 1 - aa 2 - aa 3 - aa 4 - aa 5 - aa 6 - c ( o )- q - x — y — c ( o )— w ; aa 1 is glycine , alanine , or h 2 n ( ch 2 ) m co 2 h , wherein m is 2 , 3 , 4 or 5 ; aa 2 is a bond , or alanine , cysteine , aspartic acid , glutamic acid , phenylalanine , glycine , histidine , isoleucine , lysine , leucine , methionine , asparagine , proline , glutamine , arginine , serine , threonine , valine , tryptophan , or tyrosine ; aa 3 is a bond , or alanine , cysteine , aspartic acid , glutamic acid , phenylalanine , glycine , histidine , isoleucine , lysine , leucine , methionine , asparagine , proline , glutamine , arginine , serine , threonine , valine , tryptophan , or tyrosine ; aa 4 is a bond , or alanine , cysteine , aspartic acid , glutamic acid , phenylalanine , glycine , histidine , isoleucine , lysine , leucine , methionine , asparagine , proline , glutamine , arginine , serine , threonine , valine , tryptophan , or tyrosine ; aa 5 is a bond , or glycine , valine , tyrosine , tryptophan , phenylalanine , methionine , leucine , isoleucine , or asparagine ; aa 6 is a bond , or alanine , asparagine , citrulline , glutamine , glycine , leucine , methionine , phenylalanine , serine , threonine , tryptophan , tyrosine , valine , or h 2 n ( ch 2 ) m co 2 h , wherein m is 2 , 3 , 4 or 5 ; l is — oh , — o - succinimide , — o -. sulfosuccinimide , alkoxy , aryloxy , acyloxy , aroyloxy , alkoxycarbonyloxy , aryloxycarbonyloxy , — nh 2 , — nh ( c 2 - c 6 hydroxyalkyl ), halide or perfluoroalkyloxy ; q is nr , o , or s ; x is m -( c ( r ) 2 ) p - m - j - m -( c ( r ) 2 ) p - m - v ; m is a bond , or c ( o ); j is a bond , or (( ch 2 ) q q ) r , c 5 - c 8 cycloalkyl , aryl , heteroaryl , nr , o , or s ; y is nr , o , or s ; r is h or alkyl ; v is a bond or r 9 is alkyl , aryl , aralkyl , or a bond ; or r 9 taken together with y forms a heterocyclic ring ; the compound has a molecular weight of less than about 60 kda . in certain embodiments , p is c 1 - c 6 alkyl . in certain embodiments , r 4 is methyl . in certain embodiments , r 5 is c 1 - c 6 alkyl . in certain embodiments , r 5 is methyl . in certain embodiments , r 6 is 2 - hydroxyethyl , 2 - hydroxypropyl or 3 - hydroxypropyl . in certain embodiments , r 6 is 2 - hydroxypropyl . in other embodiments , the molecular weight is less than about 45 kda . in other embodiments , the molecular weight is less than about 35 kda . in certain embodiments , the ratio of x to y is in the range of about 30 : 1 to about 3 : 1 . in other embodiments , the ratio of x to y is in the range of about 20 : 1 to about 4 : 1 . in certain embodiments , the ratio of x to y is in the range of about 15 : 1 to about 6 : 1 . in certain embodiments , the ratio of x to y is about 15 : 1 . in certain embodiments , the ratio of x to y is about 11 : 1 . in certain embodiments , the ratio of x to y is about 6 : 1 . in certain embodiments , z is — nh - aa 1 - aa 2 - aa 3 - aa 4 - aa 5 - aa 6 - c ( o )- l . in certain embodiments , l is methoxy , ethoxy , pentafluorophenyloxy , phenyloxy , acetoxy , fluoride , chloride , methoxycarbonyloxy ; ethoxycarbonyloxy , phenyloxycarbonyloxy , 4 - nitrophenyloxy , trifluoromethoxy , pentafluoroethoxy , or trifluoroethoxy . in certain embodiments , l is 4 - nitrophenyloxy . in certain embodiments , z is — nh - aa 1 - aa 2 - aa 3 - aa 4 - aa 5 - aa 6 - c ( o )- q - x — y — c ( o )— w . in certain embodiments , aa 1 is glycine . in certain embodiments , aa 2 is glycine . in certain embodiments , aa 3 is glycine . in certain embodiments , aa 4 is glycine or phenylalanine . in certain embodiments , aa 5 is leucine , phenylalanine , valine or tyrosine . in certain embodiments , aa 6 is asparagine , citrulline , glutamine , glycine , leucine , methionine , threonine or tyrosine . in certain embodiments , aa 5 - aa 6 is leu - cit , leu - gln , leu - gly , leu - leu , leu - met , leu - thr , phe - cit , phe - gln , phe - leu , phe - met , phe - thr , val - asn , val - cit , val - gln , val - leu , val - met , val - thr , tyr - cit , tyr - leu , or tyr - met . in certain embodiments , aa 1 , aa 3 and aa 5 are glycine , valine , tyrosine , tryptophan , phenylalanine , methionine , leucine , isoleucine , or asparagine . in certain embodiments , aa 2 , aa 4 and aa 6 are glycine , asparagine , citrulline , glutamine , glycine , leucine , methionine , phenylalanine , threonine or tyrosine . in certain embodiments , aa 2 is a bond ; and aa 3 is a bond . in certain embodiments , aa 1 is glycine ; aa 4 is phenylalanine ; aa 5 is leucine ; and aa 6 is glycine . wherein r 2 is — oh or methoxy ; and r 3 is h , — oh or methoxy . in certain embodiments , j is nr . in other embodiments , j is (( ch 2 ) q q ) r . in other embodiments , j is c 5 - c 8 cycloalkyl . in certain embodiments , j is aryl . r 12 is h or me ; or r taken together with r forms a piperidine ring ; r 11 is h or me ; and r 13 taken together with r 12 forms a piperidine ring . in certain embodiments , r 4 and r 5 are methyl ; is 2 - hydroxypropyl ; z is — nh - aa 1 - aa 2 - aa 3 - aa 4 - aa 5 - aa 6 - c ( o )- q - x — y — c ( o )— w ; aa 1 is glycine ; aa 2 is a bond ; aa 3 is a bond ; aa 4 is phenylalanine ; aa 5 is leucine ; aa 6 is glycine ; - q - x — y — is in certain embodiments , r 4 and r 5 are methyl ; is 2 - hydroxypropyl ; z is — nh - aa 1 - aa 2 - aa 3 - aa 4 - aa 5 - aa 6 - c ( o )- q - x — y — c ( o )— w ; aa 1 is glycine ; aa 2 is a bond ; aa 3 is a bond ; aa 4 is phenylalanine ; aa 5 is leucine ; aa 6 is glycine ; - q - x — y — is in certain embodiments , r 4 and r 5 are methyl ; r 6 is 2 - hydroxypropyl ; z is — nh - aa 1 - aa 2 - aa 3 - aa 4 - aa 5 - aa 6 - c ( o )- q - x — y — c ( o )— w ; aa 1 is glycine ; aa 2 is a bond ; aa 3 is a bond ; aa 4 is phenylalanine ; aa 5 is leucine , aa 6 is glycine ; - q - x — y — is in certain embodiments , - q - x — y — is a self - immolating linker that releases the metap2 inhibitor in the form of a carbamate derivative , as shown in the scheme below : another aspect of the present invention relates to a compound or pharmaceutically acceptable salt thereof , represented by wherein , independently for each occurrence , z is h 2 n - aa 6 - c ( o )— or h ; aa 6 is alanine , asparagine , citrulline , glutamine , glycine , leucine , methionine , phenylalanine , serine , threonine , tryptophan , tyrosine , valine or h 2 n ( ch 2 ) mco 2 h , wherein m is 2 , 3 , 4 or 5 ; q is nr , o , or s ; x is m -( c ( r ) 2 ) p - m - j - m -( c ( r ) 2 ) p - m - v ; m is a bond , or c ( o ); j is a bond , or (( ch 2 ) q q ) r , c 5 - c 8 cycloalkyl , aryl , heteroaryl , nr , o , or s ; y is nr , o , or s ; r is h or alkyl ; v is a bond or r 9 is alkyl , aryl , aralkyl , or a bond ; or r 9 taken together with y forms a heterocyclic ring ; r 10 is amido or a bond ; r 11 is h or alkyl ; w is a metap2 inhibitor moiety ; p is 0 to 20 ; q is 2 or 3 ; and r is 1 , 2 , 3 , 4 , 5 , or 6 . in certain embodiments , z is h . in other embodiments , z is h 2 n - aa 6 - c ( o )— wherein r 2 is — oh or methoxy ; and r 3 is h , — oh or methoxy . r 12 is h or me ; or r 12 taken together with r 14 forms a piperidine ring ; r 13 taken together with r 12 forms a piperidine ring . in certain embodiments , z is h 2 n - aa 6 - c ( o )—; aa 6 is glycine ; q - x — y is in certain embodiments , z is h 2 n - aa 6 - c ( o )—; aa 6 is glycine ; q - x — y is in certain embodiments , z is h 2 n - aa 6 - c ( o )—; aa 6 is glycine ; q - x — y is ; exemplary polymers of the invention have been described in u . s . pat . no . 4 , 997 , 878 to bock et al , u . s . pat . no . 5 , 037 , 883 to kopecek et al . u . s . pat . no . 5 , 258 , 453 to kopecek et al , u . s . pat . no . 6 , 464 , 850 to zhang et al ., u . s . pat . no . 6 , 803 , 438 to brocchini et al ., each of which is incorporated by reference in its entirety . additional exemplary polymers have been described in subr et al ., j controlled release , 18 , 123 - 132 ( 1992 ). exemplary peptides of the invention have been described in u . s . pat . no . 6 , 835 , 807 to susaki et al , u . s . pat . no . 6 , 291 , 671 to inoue et al , u . s . pat . no . 6 , 811 , 996 to inoue et al , u . s . pat . no . 7 , 041 , 818 to susaki et al , u . s . pat . no . 7 , 091 , 186 to senter et al , u . s . pat . no . 7 , 553 , 816 to senter et al . each of which is incorporated by reference in its entirety . additional exemplary peptides and their cleavage have been described in shiose et al . biol . pharm . bull . 30 ( 12 ) 2365 - 2370 ( 2007 ) and shiose et al . bioconjugate chem . 20 ( 1 ) 60 - 70 ( 2009 ). in some embodiments , the method of synthesis of the polymer may lead to the coupling of two or more polymer chains and may increase the weight average molecular weight of the polymer conjugate . it is further recognized that if this coupling occurs , the linkages will be biodegradable . exemplary metap2 inhibitors have been described in u . s . pat . no . 6 , 242 , 494 to craig et al , u . s . pat . no . 6 , 063 , 812 to hong et al , u . s . pat . no . 6 , 887 , 863 to craig et al , u . s . pat . no . 7 , 030 , 262 to bamaung et al ., u . s . pat . no . 7 , 491 , 718 to comess et al , each of which is incorporated by reference in its entirety . additional exemplary metap2 inhibitors have been described in wang et al . “ correlation of tumor growth suppression and methionine aminopeptidase - 2 activity blockade using an orally active inhibitor ,” pnas 105 ( 6 ) 1838 - 1843 ( 2008 ); lee at al . “ design , synthesis , and antiangiogenic effects of a series of potent novel fumagillin analogues ,” chem . pharm . bull . 55 ( 7 ) 1024 - 1029 ( 2007 ); jeong et al . “ total synthesis and antiangiogenic activity of cyclopentane analogues of fumagillol ,” bioorganic and medicinal chemistry letters 15 , 3580 - 3583 ( 2005 ); arico - muendel et al . “ carbamate analogues of fumagillin as potent , targeted inhibitors of methionine aminopeptidase - 2 ,” j . med . chem . 52 , 8047 - 8056 ( 2009 ); and international publication no . wo 2010 / 003475 to heinrich et al . because the scientific literature has established a causal link between inhibition of metap2 and the resultant inhibition of endothelial cell proliferation and angiogenesis , it can be inferred that the metap2 inhibitors described herein possess antiangiogenic activity . as angiogenesis inhibitors , such compounds are useful in the treatment of both primary and metastatic solid tumors , including carcinomas of breast , colon , rectum , lung , oropharynx , hypopharynx , esophagus , stomach , pancreas , liver , gallbladder and bile ducts , small intestine , urinary tract ( including kidney , bladder , and urothelium ), female genital tract ( including cervix , uterus , and ovaries as well as choriocarcinoma and gestational trophoblastic disease ), male genital tract ( including prostate , seminal vesicles , testes , and germ cell tumors ), endocrine glands ( including the thyroid , adrenal , and pituitary glands ), and skin , as well as hemangiomas , melanomas , sarcomas ( including those arising from bone and soft tissues as well as kaposi &# 39 ; s sarcoma ) and tumors of the brain , nerves , eyes , and meninges ( including astrocytomas , gliomas , glioblastomas , retinoblastomas , neuromas , neuroblastomas , schwannomas , and meningiomas ). such compounds may also be useful in treating solid tumors arising from hematopoietic malignancies such as leukemias ( i . e ., chloromas , plasmacytomas and the plaques and tumors of mycosis fungosides and cutaneous t - cell lymphoma / leukemia ) as well as in the treatment of lymphomas ( both hodgkin &# 39 ; s and non - hodgkin &# 39 ; s lymphomas ). in addition , these compounds may be useful in the prevention of metastases from the tumors described above either when used alone or in combination with radiotherapy and / or other chemotherapeutic agents . the compounds of the invention can also be useful in the treatment of the aforementioned conditions by mechanisms other than the inhibition of angiogenesis . further uses include the treatment and prophylaxis of diseases such as blood vessel diseases such as hemagiomas , and capillary proliferation within atherosclerotic plaques ; osier - webber syndrome ; myocardial angiogenesis ; plaque neovascularization ; telangiectasia ; hemophiliac joints ; angiofibroma ; and wound granulation . other uses include the treatment of diseases characterized by excessive or abnormal proliferation of endothelial cells , including not limited to intestinal adhesions , crohn &# 39 ; s disease , atherosclerosis , scleroderma , and hypertrophic scars , i . e ., keloids . another use is as a birth control agent , by inhibiting ovulation and establishment of the placenta . the compounds of the invention are also useful in the treatment of diseases that have angiogenesis as a pathologic consequence such as cat scratch disease ( rochele minutesalia quintosa ) and ulcers ( helicobacter pylori ). the compounds of the invention are also useful to reduce bleeding by administration prior to surgery , especially for the treatment of resectable tumors . another aspect of the present invention relates to a pharmaceutical composition , comprising any one of the compounds described herein , and a pharmaceutically acceptable carrier or excipient . in certain embodiments , the pharmaceutical composition comprises dmso . yet another aspect of the present invention relates to a method of treating a disease or condition by administering to a subject in need thereof a therapeutically effective amount of a compound or composition described herein , wherein the disease is cancer , a disease characterized by irregular vasculature , a disease or condition characterized by hyperpermeable vasculature , cardiovascular , coronary vasculitis , pleural effusion , il - 2 associated edema , edema , or transplant rejection . in certain embodiments , the disease is a solid tumor . in certain embodiments , the solid tumor is a melanoma , metastases , adenocarcinoma , sarcoma , thymoma , lymphoma , lung tumor , liver tumor , colon tumor , kidney tumor , non - hodgkin &# 39 ; s lymphoma , hodgkin &# 39 ; s lymphoma , leukemia , uterine tumor , breast tumor , testicular tumor , bone tumor , muscle tumor , tumor of the head and neck , esophagus tumor , thyroid tumor , nasopharyngeal tumor , endocrine tumor , brain tumor , tumor of the skin , soft tissue tumor , tumor of the placenta or gastric tumor . another aspect of the present invention relates to a method of treating an angiogenic disease by administering to a subject in need thereof a therapeutically effective amount of a compound or composition described herein . another aspect of the present invention relates to a method of treating cancer by administering to a subject in need thereof a therapeutically effective amount of a compound or composition described herein . in certain embodiments , the cancer is adenocarcinoma , anal , astrocytoma , bladder , blood , bone , brain , breast , carcinoma , colon , cervical , endocrine , endometrial , esophageal , eye , gastric , genital , head and neck , hemangioma , non - hodgkin &# 39 ; s lymphoma , hodgkin &# 39 ; s lymphoma , kidney , laryngeal , leukemia , liver , lung , lymphoma , melanoma , mesothelioma , metastatic , mouth , muscle , myeloma , nasal , nasopharyngeal , oral , ovarian , pancreatic , penile , placenta , prostate , rectal , renal , sarcoma , skin , soft tissue , testicular , throat , thymoma , thyroid , transitional cell , ureter , uterine or vaginal . another aspect of the present invention relates to a method of treatment or inhibition of an undesirable proliferation of cells by administering to a subject in need thereof a therapeutically effective amount of a compound or composition described herein . the compounds of the present invention are useful in inhibiting the proliferation of endothelial cells , tumor cells , smooth muscle cells , metastatic cells and others both in vitro and in vivo . of particular interest is the prevention or inhibition of endothelial cell differentiation into capillary structures . the endothelial cells amenable to inhibition by the compounds of the invention are present at several sites in a mammal and include but are not limited to dermis , epidermis , endometrium , retina , surgical sites , gastrointestinal tract , liver , kidney , reproductive system , skin , bone , muscle , endocrine system , brain , lymphoid system , central nervous system , respiratory system , umbilical cord , breast tissue , urinary tract and the like . the methods of treatment of the present invention using the compounds described herein are particularly useful in preventing or inhibiting endothelial cell proliferation at sites of irregular vasculature , hyperpermeable vasculature , inflammation and tumorigenesis . the compounds of the invention are particularly useful in methods of inhibiting tumorigenesis in a mammal . tumors which may be prevented or inhibited by preventing or inhibiting tumor cell proliferation with the compound include but are not limited to melanoma , metastases , adenocarcinoma , sarcomas , thymoma , lymphoma , lung tumors , liver tumors , colon tumors , kidney tumors , non - hodgkins lymphoma , hodgkins lymphoma , leukemias , multiple myeloma , uterine tumors , breast tumors , prostate tumors , renal tumors , ovarian tumors , pancreatic tumors , brain tumors , testicular tumors , bone tumors , muscle tumors , tumors of the placenta , gastric tumors and the like . in certain embodiments , the subject is a vertebrate . in certain embodiments , the vertebrate is a mammal . in certain embodiments , the mammal is a human . in providing a mammal with one or more of the compounds described herein , the dosage of administered compound ( s ) will vary depending upon such factors as the mammal &# 39 ; s age , weight , height , sex , general medical condition , previous medical history , disease progression , tumor burden , route of administration , formulation and the like . for example , a suitable dose of a compound of the invention for a mammal in need of treatment as described herein is in the range of about 0 . 01 mg to about 2000 mg compound per kilogram of body weight . in addition , due to the effects of being bound to the polymer , agents may be administered at lower doses than typically used in the treatment of a particular disorder . surprisingly , in some embodiments the polymer conjugates of the invention are more active on a weight / weight basis than the corresponding small molecules . the present invention also encompasses combination therapy in which compounds described herein are used in combination with , for example , a chemotherapeutic agent , or an anti - hypertensive agent . the therapeutic agents may also be conjugated to a polymer . the route of administration may be intravenous ( i . v . ), intramuscular ( i . m . ), subcutaneous ( s . c . ), intradermal ( i . d . ), intraperitoneal ( lp . ), intrathecal ( i . t . ), intrapleural , intrauterine , rectal , vaginal , topical , intratumor and the like . the term “ alkyl ” refers to a fully saturated branched or unbranched carbon chain radical having the number of carbon atoms specified , or up to 30 carbon atoms if no specification is made . for example , a “ lower alkyl ” refers to an alkyl having from 1 to 10 carbon atoms , such as methyl , ethyl , propyl , butyl , pentyl , hexyl , heptyl , and octyl , and those which are positional isomers of these alkyls . alkyl of 10 to 30 carbon atoms includes decyl , undecyl , dodecyl , tridecyl , tetradecyl , pentadecyl , hexadecyl , heptadecyl , octadecyl , nonadecyl , eicosyl , heneicosyl , docosyl , tricosyl and tetracosyl . in certain embodiments , a straight chain or branched chain alkyl has 30 or fewer carbon atoms in its backbone ( e . g ., c 1 - c 30 for straight chains , c 3 - c 30 for branched chains ), and more preferably 20 or fewer . likewise , certain cycloalkyls have from 3 - 10 carbon atoms in their ring structure , and may have 5 , 6 , or 7 carbons in the ring structure . unless the number of carbons is otherwise specified , “ lower alkyl ”, as used herein , means an alkyl group , as defined above , but having from one to ten carbons , or from one to six carbon atoms in its backbone structure such as methyl , ethyl , n - propyl , isopropyl , n - butyl , isobutyl , sec - butyl , and tert - butyl . likewise , “ lower alkenyl ” and “ lower alkynyl ” have similar chain lengths . throughout the application , certain alkyl groups are lower alkyls . in certain embodiments , a substituent designated herein as alkyl is a lower alkyl . the term “ carbocycle ”, as used herein , refers to an aromatic or non - aromatic ring in which each atom of the ring is carbon . the term “ aryl ” as used herein includes 5 -, 6 - and 7 - membered single - ring aromatic groups that may include from zero to four heteroatoms , for example , benzene , pyrrole , furan , thiophene , imidazole , oxazole , thiazole , triazole , pyrazole , pyridine , pyrazine , pyridazine and pyrimidine , and the like . those aryl groups having heteroatoms in the ring structure may also be referred to as “ aryl heterocycles ” or “ heteroaromatics ”. the aromatic ring can be substituted at one or more ring positions with such substituents as described above , for example , halogen , azide , alkyl , aralkyl , alkenyl , alkynyl , cycloalkyl , hydroxyl , alkoxyl , amino , nitro , sulfhydryl , imino , amido , phosphonate , phosphinate , carbonyl , carboxyl , silyl , ether , alkylthio , sulfonyl , sulfonamido , ketone , aldehyde , ester , heterocyclyl , aromatic or heteroaromatic moieties , — cf 3 , — cn , or the like . the term “ aryl ” also includes polycyclic ring systems having two or more cyclic rings in which two or more carbons are common to two adjoining rings ( the rings are “ fused rings ”) wherein at least one of the rings is aromatic , e . g ., the other cyclic rings can be cycloalkyls , cycloalkenyls , cycloalkynyls , aryls and / or heterocyclyls . “ alkenyl ” refers to any branched or unbranched unsaturated carbon chain radical having the number of carbon atoms specified , or up to 26 carbon atoms if no limitation on the number of carbon atoms is specified ; and having 1 or more double bonds in the radical . alkenyl of 6 to 26 carbon atoms is exemplified by hexenyl , heptenyl , octenyl , nonenyl , decenyl , undecenyl , dodenyl , tridecenyl , tetradecenyl , pentadecenyl , hexadecenyl , heptadecenyl , octadecenyl , nonadecenyl , eicosenyl , heneicosoenyl , docosenyl , tricosenyl and tetracosenyl , in their various isomeric forms , where the unsaturated bond ( s ) can be located anywhere in the radical and can have either the ( z ) or the ( e ) configuration about the double bond ( s ). the term “ alkynyl ” refers to hydrocarbyl radicals of the scope of alkenyl , but having one or more triple bonds in the radical . the terms “ alkoxyl ” or “ alkoxy ” as used herein refers to an alkyl group , as defined below , having an oxygen radical attached thereto . representative alkoxy groups include methoxy , ethoxy , propoxy , tert - butoxy and the like . an “ ether ” is two hydrocarbons covalently linked by an oxygen . accordingly , the substituent of an alkyl that renders that alkyl an ether is or resembles an alkoxyl , such as can be represented by one of — o - alkyl , — o — alkenyl , — o - alkynyl , — o —( ch 2 ) m — r 1 , where m and r 1 are described below . the terms “ heterocyclyl ” or “ heterocyclic group ” refer to 3 - to 10 - membered ring structures , more preferably 3 - to 7 - membered rings , whose ring structures include one to four heteroatoms . heterocycles can also be poly cycles . heterocyclyl groups include , for example , thiophene , thianthrene , furan , pyran , isobenzofuran , chromene , xanthene , phenoxathiin , pyrrole , imidazole , pyrazole , isothiazole , isoxazole , pyridine , pyrazine , pyrimidine , pyridazine , indolizine , isoindole , indole , indazole , purine , quinolizine , isoquinoline , quinoline , phthalazine , naphthyridine , quinoxaline , quinazoline , cinnoline , pteridine , carbazole , carboline , phenanthridine , acridine , pyrimidine , phenanthroline , phenazine , phenarsazine , phenothiazine , furazan , phenoxazine , pyrrolidine , oxolane , thiolane , oxazole , piperidine , piperazine , morpholine , lactones , lactams such as azetidinones and pyrrolidinones , sultams , sultones , and the like . the heterocyclic ring can be substituted at one or more positions with such substituents as described above , as for example , halogen , alkyl , aralkyl , alkenyl , alkynyl , cycloalkyl , hydroxyl , amino , nitro , sulfhydryl , imino , amido , phosphate , phosphonate , phosphinate , carbonyl , carboxyl , silyl , sulfamoyl , sulfmyl , ether , alkylthio , sulfonyl , ketone , aldehyde , ester , a heterocyclyl , an aromatic or heteroaromatic moiety , — cf 3 , — cn , or the like . the term “ alkylthio ” refers to an alkyl group , as defined above , having a sulfur radical attached thereto . in certain embodiments , the “ alkylthio ” moiety is represented by one of —( s )- alkyl , —( s )- alkenyl , —( s )- alkynyl , and —( s )—( ch 2 ) m — r 1 , wherein m and r 1 are defined below . representative alkylthio groups include methylthio , ethylthio , and the like . as used herein , the term “ nitro ” means — no 2 ; the term “ halogen ” designates f , cl , br or i ; the term “ sulfhydryl ” means — sh ; the term “ hydroxyl ” means — oh ; and the term “ sulfonyl ” means — so 2 —. the terms “ amine ” and “ amino ” are art - recognized and refer to both unsubstituted and substituted amines , e . g ., a moiety that can be represented by the general formulae : wherein r 3 , r 5 and r 6 each independently represent a hydrogen , an alkyl , an alkenyl , —( ch 2 ) m — r 1 , or r 3 and r 5 taken together with the n atom to which they are attached complete a heterocycle having from 4 to 8 atoms in the ring structure ; r 1 represents an alkenyl , aryl , cycloalkyl , a cycloalkenyl , a heterocyclyl or a polycyclyl ; and m is zero or an integer in the range of 1 to 8 . in certain embodiments , only one of r 3 or r 5 can be a carbonyl , e . g ., r 3 , r 5 and the nitrogen together do not form an imide . in certain embodiments , r 3 and r 5 ( and optionally r 6 ) each independently represent a hydrogen , an alkyl , an alkenyl , or —( ch 2 ) m — r 1 . thus , the term “ alkylamine ” as used herein means an amine group , as defined above , having a substituted or unsubstituted alkyl attached thereto , i . e ., at least one of r 3 and r 5 is an alkyl group . in certain embodiments , an amino group or an alkylamine is basic , meaning it has a pk a ≧ 7 . 00 . the protonated forms of these functional groups have pk a s relative to water above 7 . 00 . the term “ carbonyl ” ( c ( o )) is art - recognized and includes such moieties as can be represented by the general formula : wherein x is a bond or represents an oxygen or a sulfur , and r 7 represents a hydrogen , an alkyl , an alkenyl , —( ch 2 ) m — r 1 or a pharmaceutically acceptable salt , r 8 represents a hydrogen , an alkyl , an alkenyl or —( ch 2 ) m — r 1 , where m and r 1 are as defined above . where x is an oxygen and r 7 or r 8 is not hydrogen , the formula represents an “ ester ”. where x is an oxygen , and r 7 is as defined above , the moiety is referred to herein as a carboxyl group , and particularly when r 7 is a hydrogen , the formula represents a “ carboxylic acid ”. where x is an oxygen , and r 8 is hydrogen , the formula represents a “ formate ”. in general , where the oxygen atom of the above formula is replaced by sulfur , the formula represents a “ thiocarbonyl ” group . where x is a sulfur and r 7 or r 8 is not hydrogen , the formula represents a “ thioester ” group . where x is a sulfur and r 7 is hydrogen , the formula represents a “ thiocarboxylic acid ” group . where x is a sulfur and r 8 is hydrogen , the formula represents a “ thioformate ” group . on the other hand , where x is a bond , and r 7 is not hydrogen , the above formula represents a “ ketone ” group . where x is a bond , and r 7 is hydrogen , the above formula represents an “ aldehyde ” group . as used herein , the term “ substituted ” is contemplated to include all permissible substituents of organic compounds . in a broad aspect , the permissible substituents include acyclic and cyclic , branched and unbranched , carbocyclic and heterocyclic , aromatic and nonaromatic substituents of organic compounds . illustrative substituents include , for example , those described herein above . the permissible substituents can be one or more and the same or different for appropriate organic compounds . for purposes of this invention , the heteroatoms such as nitrogen may have hydrogen substituents and / or any permissible substituents of organic compounds described herein which satisfy the valences of the heteroatoms . this invention is not intended to be limited in any manner by the permissible substituents of organic compounds . it will be understood that “ substitution ” or “ substituted with ” includes the implicit proviso that such substitution is in accordance with permitted valence of the substituted atom and the substituent , and that the substitution results in a stable compound , e . g ., which does not spontaneously undergo transformation such as by rearrangement , cyclization , elimination , etc . the term “ sulfamoyl ” is art - recognized and includes a moiety that can be represented by the general formula : in which r 3 and r 5 are as defined above . the term “ sulfate ” is art recognized and includes a moiety that can be represented by the general formula : the term “ sulfamido ” is art recognized and includes a moiety that can be represented by the general formula : in which r 2 and r 4 are as defined above . the term “ sulfonate ” is art - recognized and includes a moiety that can be represented by the general formula : in which r 7 is an electron pair , hydrogen , alkyl , cycloalkyl , or aryl . the terms “ sulfoxido ” or “ sulfmyl ”, as used herein , refers to a moiety that can be represented by the general formula : in which r 12 is selected from the group consisting of hydrogen , alkyl , alkenyl , alkynyl , cycloalkyl , heterocyclyl , aralkyl , or aryl . analogous substitutions can be made to alkenyl and alkynyl groups to produce , for example , aminoalkenyls , aminoalkynyls , amidoalkenyls , amidoalkynyls , iminoalkenyls , iminoalkynyls , thioalkenyls , thioalkynyls , carbonyl - substituted alkenyls or alkynyls . as used herein , the definition of each expression , e . g ., alkyl , m , n , etc ., when it occurs more than once in any structure , is intended to be independent of its definition elsewhere in the same structure . for purposes of this invention , the chemical elements are identified in accordance with the periodic table of the elements , cas version , handbook of chemistry and physics , 67th ed ., 1986 - 87 , inside cover . the phrase “ pharmaceutically acceptable ” is employed herein to refer to those ligands , materials , compositions , and / or dosage forms which are , within the scope of sound medical judgment , suitable for use in contact with the tissues of human beings and animals , substantially non - pyrogenic , without excessive toxicity , irritation , allergic response , or other problem or complication , commensurate with a reasonable benefit / risk ratio . the phrase “ pharmaceutically acceptable carrier ” as used herein means a pharmaceutically acceptable material , composition or vehicle , such as a liquid or solid filler , diluent , excipient , solvent or encapsulating material , involved in carrying or transporting the subject chemical from one organ or portion of the body , to another organ or portion of the body . each carrier must be “ acceptable ” in the sense of being compatible with the other ingredients of the formulation , not injurious to the patient , and substantially non - pyrogenic . some examples of materials which can serve as pharmaceutically acceptable carriers include : ( 1 ) sugars , such as lactose , glucose , and sucrose ; ( 2 ) starches , such as corn starch and potato starch ; ( 3 ) cellulose , and its derivatives , such as sodium carboxymethyl cellulose , ethyl cellulose , and cellulose acetate ; ( 4 ) powdered tragacanth ; ( 5 ) malt ; ( 6 ) gelatin ; ( 7 ) talc ; ( 8 ) excipients , such as cocoa butter , dmso and suppository waxes ; ( 9 ) oils , such as peanut oil , cottonseed oil , safflower oil , sesame oil , olive oil , corn oil , and soybean oil ; ( 10 ) glycols , such as propylene glycol ; ( 11 ) polyols , such as glycerin , sorbitol , mannitol , and polyethylene glycol ; ( 12 ) esters , such as ethyl oleate and ethyl laurate ; ( 13 ) agar ; ( 14 ) buffering agents , such as magnesium hydroxide and aluminum hydroxide ; ( 15 ) alginic acid ; ( 16 ) pyrogen - free water ; ( 17 ) isotonic saline ; ( 18 ) ringer &# 39 ; s solution ; ( 19 ) ethyl alcohol ; ( 20 ) phosphate buffer solutions ; and ( 21 ) other non - toxic compatible substances employed in pharmaceutical formulations . in certain embodiments , pharmaceutical compositions of the present invention are non - pyrogenic , i . e ., do not induce significant temperature elevations when administered to a patient . the term “ pharmaceutically acceptable salts ” refers to the relatively non - toxic , inorganic and organic acid addition salts of the inhibitor ( s ). these salts can be prepared in situ during the final isolation and purification of the inhibitor ( s ), or by separately reacting a purified inhibitor ( s ) in its free base form with a suitable organic or inorganic acid , and isolating the salt thus formed . representative salts include the hydrobromide , hydrochloride , sulfate , bisulfate , phosphate , nitrate , acetate , valerate , oleate , palmitate , stearate , laurate , benzoate , lactate , phosphate , tosylate , citrate , maleate , fumarate , succinate , tartrate , naphthylate , mesylate , glucoheptonate , lactobionate , and laurylsulphonate salts , and the like . ( see , for example , berge et al . ( 1977 ) “ pharmaceutical salts ”, j . pharm . sci . 66 : 1 - 19 ) in other cases , the compounds useful in the methods of the present invention may contain one or more acidic functional groups and , thus , are capable of forming pharmaceutically acceptable salts with pharmaceutically acceptable bases . the term “ pharmaceutically acceptable salts ” in these instances refers to the relatively non - toxic inorganic and organic base addition salts of an inhibitor ( s ). these salts can likewise be prepared in situ during the final isolation and purification of the inhibitor ( s ), or by separately reacting the purified inhibitor ( s ) in its free acid form with a suitable base , such as the hydroxide , carbonate , or bicarbonate of a pharmaceutically acceptable metal cation , with ammonia , or with a pharmaceutically acceptable organic primary , secondary , or tertiary amine . representative alkali or alkaline earth salts include the lithium , sodium , potassium , calcium , magnesium , and aluminum salts , and the like . representative organic amines useful for the formation of base addition salts include ethylamine , diethylamine , ethylenediamine , ethanolamine , diethanolamine , piperazine , and the like ( see , for example , berge et al ., supra ). a “ therapeutically effective amount ” of a compound , with respect to use in treatment , refers to an amount of a compound in a preparation which , when administered as part of a desired dosage regimen ( to a mammal , preferably a human ) alleviates a symptom , ameliorates a condition , or slows or prevents the onset of disease conditions according to clinically acceptable standards for the disorder or condition to be treated or the cosmetic purpose , e . g ., at a reasonable benefit / risk ratio applicable to any medical treatment . a “ therapeutically effective amount ” is synonymous with “ efficacious dose ”. a “ patient ” or “ subject ” to be treated by the subject method can mean either a human or non - human subject . the term “ prophylactic or therapeutic ” treatment is art - recognized and includes administration to the host of one or more of the subject compositions . if it is administered prior to clinical manifestation of the unwanted condition ( e . g ., disease or other unwanted state of the host animal ) then the treatment is prophylactic , ( i . e ., it protects the host against developing the unwanted condition ), whereas if it is administered after manifestation of the unwanted condition , the treatment is therapeutic , ( i . e ., it is intended to diminish , ameliorate , or stabilize the existing unwanted condition or side effects thereof ). the term “ amino acid ” is intended to embrace all compounds , whether natural or synthetic , which include both an amino functionality and an acid functionality , including amino acid analogs and derivatives . in certain embodiments , the amino acids contemplated in the present invention are those naturally occurring amino acids found in proteins , or the naturally occurring anabolic or catabolic products of such amino acids , which contain amino and carboxyl groups . naturally occurring amino acids are identified throughout by the conventional three - letter and / or one - letter abbreviations , corresponding to the trivial name of the amino acid , in accordance with the following list . the abbreviations are accepted in the peptide art and are recommended by the iupac - iub commission in biochemical nomenclature . by the term “ amino acid residue ” is meant an amino acid . in general the abbreviations used herein for designating the naturally occurring amino acids are based on recommendations of the iupac - iub commission on biochemical nomenclature ( see biochemistry ( 1972 ) 11 : 1726 - 1732 ). for instance met , he , leu , ala and gly represent “ residues ” of methionine , isoleucine , leucine , alanine and glycine , respectively . by the residue is meant a radical derived from the corresponding a - amino acid by eliminating the oh portion of the carboxyl group and the h portion of the a - amino group . the term “ amino acid side chain ” is that part of an amino acid residue exclusive of the backbone , as defined by k . d . kopple , “ peptides and amino acids ”, w . a . benjamin inc ., new york and amsterdam , 1966 , pages 2 and 33 ; examples of such side chains of the common amino acids are — ch 2 ch 2 sch 3 ( the side chain of methionine ), — ch 2 ( ch 3 )— ch 2 ch 3 ( the side chain of isoleucine ), — ch 2 ch ( ch 3 ) 2 ( the side chain of leucine ) or h — ( the side chain of glycine ). these side chains are pendant from the backbone cα carbon . the term “ peptide ,” as used herein , refers to a sequence of amino acid residues linked together by peptide bonds or by modified peptide bonds . the term “ peptide ” is intended to encompass peptide analogs , peptide derivatives , peptidomimetics and peptide variants . the term “ peptide ” is understood to include peptides of any length . peptide sequences set out herein are written according to the generally accepted convention whereby the n - terminal amino acid is on the left , and the c - terminal amino acid is on the right ( e . g ., h 2 n - aa 1 - aa 2 - aa 3 - aa 4 - aa 5 - aa 6 - co 2 h ). certain compounds of the present invention may exist in particular geometric or stereoisomeric forms . the present invention contemplates all such compounds , including cis - and trans - isomers , r - and s - enantiomers , diastereomers , ( d )- isomers , ( l )- isomers , the racemic mixtures thereof , and other mixtures thereof , as falling within the scope of the invention . additional asymmetric carbon atoms may be present in a substituent such as an alkyl group . all such isomers , as well as mixtures thereof , are intended to be included in this invention . if , for instance , a particular enantiomer of a compound of the present invention is desired , it may be prepared by asymmetric synthesis or by derivation with a chiral auxiliary , where the resulting diastereomeric mixture is separated and the auxiliary group cleaved to provide the pure desired enantiomer . alternatively , where the molecule contains a basic functional group , such as amino , or an acidic functional group , such as carboxyl , diastereomeric salts are formed with an appropriate optically - active acid or base , followed by resolution of the diastereomers thus formed by fractional crystallization or chromatographic means well known in the art , and subsequent recovery of the pure enantiomer . the invention now being generally described , it will be more readily understood by reference to the following examples , which are included merely for purposes of illustration of certain aspects and embodiments of the present invention , and are not intended to limit the invention . tangential flow filtration ( tff ) was used to purify the polymer products of the invention . tff was performed with a pall minimate ™ capsule and minimate ™ tff system according to the manufacturer &# 39 ; s instructions . either a minimate tff capsule with 5 kda omega membrane ( 5k ) or minimate tff capsule with 10 kda omega membrane ( 10k ) cartridge was used for purification . in all cases , the permeate was discarded and the retentate lyophilized to yield the polymer product . structures of products were confirmed by 1 h nmr , small molecules were also characterized by ms . polymer weights reported in the examples were not corrected for water content . carbamoylfumagillol and chloroacetylcarbamoylfumagillol can be prepared according to the methods disclosed in u . s . pat . no . 5 , 166 , 172 ( kishimoto , et al ., incorporated herein by reference ). p - nitrophenyl fumagill - 6 - yl carbonate can be prepared according to published procedures . ( see han , c . et al . biorg . med . chem . lett . 2000 , 10 , 39 - 43 ). ma - gflg - onp can be prepared according to the methods disclosed in u . s . pat . no . 5 , 258 , 453 ( kopecek et al . incorporated herein by reference .) a mixture of hydroxypropylmethacrylamide ( hpma , 22 . 16 g , 155 mmol ), n - methyacryl - gly - phe - leu - gly p - nitrophenyl ester ( ma - gflg - onp , 10 . 00 g , 17 . 19 mmol ), aibn ( 1 . 484 g , 9 . 037 mmol ) and acetone ( 225 g ) was degassed ( freeze , pump , thaw , 4 cycles ). the resulting reaction mixture was stirred at 50 ° c . for 48 hours , then cooled to room temperature . the desired product was purified by trituration with acetone , then dried under vacuum to yield 17 . 6 g of poly ( hpma - co - ma - gflg - onp ) as a white solid . the structure was verified by 1 h nmr and the product shown to be free from substantial impurities ( e . g ., p - nitrophenol ). based on uv absorbance , the copolymer contained 0 . 47 mmoles of p - nitrophenyl ester per gram of polymer . the copolymer of this example is used in most of the subsequent examples . a wide range of copolymers based on different monomers and / or monomer ratios may be made following this procedure by adjusting the stoichiometry and / or using different monomers . poly ( hpma - co - ma - gflg - onp ) ( 700 mg ) was added portionwise to a solution of 0 . 1 m naoh ( 11 . 3 ml ) at 0 ° c . the yellow reaction mixture was stirred at 0 ° c . for 0 . 5 hours , then at room temperature for 4 hours . one - half of the solution was acidified with 0 . 1 m hcl to ph = 6 . the aqueous phase was extracted with ethyl acetate to remove excess p - nitrophenol . the aqueous phase was lyophilized to afford poly ( hpma - co - ma - gflg - oh ) as a colorless solid ( 360 mg ). a solution of poly ( hpma - co - ma - gflg - onp ) ( 1 . 0 g , 0 . 534 mmol ) in dmf ( 6 ml ) and h 2 o ( 10 ml ) was added dropwise over a 15 minute interval to a solution of tert - butyl n -( 2 - aminoethyl )- n - methylcarbamate ( 0 . 20 g , 1 . 15 mmol ) in water ( 20 ml ) at 0 ° c . the reaction mixture was stirred at 0 ° c . for 15 minutes , then warmed to room temperature and stirred for 12 hours . the solvents were evaporated under reduced pressure . the resulting residue was dissolved in water ( 50 ml ), the ph was adjusted to approximately 8 . 0 with 0 . 1 m naoh . the solution was filtered through a vacucap filter , then purified using tff ( 10 k ). the polymer - containing solution was washed ( as part of the tff process ) with 25 mm nacl solution ( 800 ml ) to remove p - nitrophenol , the ph of the solution was adjusted to approximately 4 with 0 . 1 m hcl , and then washed ( as part of the tff process ) with water ( 400 ml ). the polymer solution was lyophilized to isolate the compound poly ( hpma - co - ma - gflg - nhch 2 ch 2 n ( me ) boc ) as a pale yellow solid ( 720 mg , 71 %). a solution of poly ( hpma - co - ma - gflg - nhch 2 ch 2 n ( me ) boc ) ( 260 mg , 0 . 136 mmol ) in d 2 o ( 5 . 2 ml ) was irradiated with microwave radiation at 150 ° c . with stirring for 6 hours . the 1 h nmr of this material indicated that deprotection of boc group had occurred . the aqueous solution was lyophilized to isolate the poly ( hpma - co - ma - gflg - nhch 2 ch 2 nhme ) as a pale yellow solid ( 210 mg , 85 %). diisopropylethylamine ( diea ) ( 130 mg ) was added to a solution of n -[ 2 -( methylamino ) ethyl ] acetamide hydrochloride ( 76 mg ) and chloroacetylcarbamoylfumagillol ( 200 mg ) in anhydrous dmf at 0 ° c . under n 2 . the reaction mixture was allowed to warm to room temperature , and stirred for 12 hours . the solvent was removed under reduced pressure and the resulting residue was suspended in water ( 30 ml ) and extracted with etoac ( aqueous and organic phases from the emulsion formed were separated using a centrifuge ) to remove excess chloroacetylcarbamoylfumagillol . nitrogen was passed through the aqueous solution to reduce the residual level of etoac . the product was purified by flash chromatography ( methanol / methylene chloride ) to yield n -({[ 2 -( acetylamino ) ethyl ]( methyl ) amino } acetyl ) carbamoylfumagillol ( 75 mg ) as an off - white foam . bocnhch 2 ch 2 n ( me ) ch 2 c ( o ) nhc ( o ) 2 - fumagill - 6 - yl ( alkylation of n — boc , n ′- methylethylenediamine with chloroacetylcarbamoylfumagillol ) a solution of tnp - 470 ( 0 . 2 g ) and diea ( 0 . 105 g ) in dmf ( 3 ml ) was cooled to 0 ° c . a solution of tert - butyl n -[ 2 -( methylamino ) ethyl ] carbamate ( 0 . 105 g ) in dmf ( 3 ml ) was added , and the mixture was stirred for 3 hours at 0 ° c . and then overnight . the reaction was diluted with ethyl acetate and extracted with water . the aqueous phase was back extracted with ethyl acetate , and the combined organic phases were extracted with brine , dried ( mgso 4 ) and evaporated to afford an oil . purification by silica gel chromatography ( methanol / methylene chloride ) and evaporation of the product fractions gave bocnhch 2 ch 2 n ( me ) ch 2 c ( o ) nhc ( o ) 2 - fumagill - 6 - yl a white foam ( 0 . 16 g , 60 %). a 30 ul aliquot of a 1 m solution of boc - ethylenediamine in dmf was added to dmf ( 270 ul ). the solution was cooled to 0 ° c ., and a solution of tnp - 470 ( 48 mg ) in dmf ( 600 ul ) was added dropwise over 2 minutes . the reaction was monitored by lc / ms . the largest amount of the desired alkylation product observed was 34 %. carbamoylfumagillol was also produced . the ratio of desired product to carbamoylfumagillol was 1 . 0 to 0 . 4 . attempted isolation of the desired product resulted in the isolation of hydantoin and fumagillol . general procedure b was followed using poly ( hpma - co - ma - gflg - nhch 2 ch 2 nhme ) ( 105 mg , 0 . 058 mmol ) and chloroacetylcarbamoylfumagillol ( 46 mg , 0 . 114 mmol ) in dmf ( 5 ml ) to which diea ( 29 . 5 mg , 0 . 228 mmol ) was added n 2 . the product was purified using tff ( 5 k ) by washing with water ( 150 ml ) to remove diea hydrochloride . the polymer solution was lyophilized to obtain the polymer conjugate ( 60 mg , 48 %) as a pale yellow solid . synthesis of pol ( hpma - co - ma - gflg - nhch 2 ch 2 nh 2 hcl ) and general procedure c for the reaction of diamines with poly ( hpma - co - ma - gflg - onp ) a solution of ethylenediamine ( 0 . 33 g , 5 . 49 mmole ) in water ( 20 ml ), ph 11 . 7 , was adjusted to ph 9 . 1 by the addition of 37 % aq hcl ( 17 - 18 drops ). the solution was cooled in an ice bath and poly ( hpma - co - ma - gflg - onp ) ( 1 . 03 g ) in dmf ( 6 ml ) was added dropwise over 20 minutes while maintaining the temperature below 4 ° c . the solution was stirred 20 minutes at 4 ° c ., 50 minutes at room temperature to give a lemon yellow solution , ph 8 . 1 . the solution was evaporated at 40 ° c . h 2 o ( 3 × 10 ml ) was added and evaporated . the product was diluted with water ( 60 ml ), the solution adjusted with naoh to ph 8 . 0 . the solution was filtered through a vacucap filter and purified by tff as follows . the polymer solution was first washed with 25 mm nacl solution ( 800 ml ) to remove p - nitrophenol . the solution was washed with water ( 400 ml ) then adjusted to ph 4 with 0 . 1 m hcl . the tff retentate was collected and the filter was washed with 2 × 10 ml of water . the combined retentate and washes gave a polymer solution which was lyophilized to isolate the compound poly ( hpma - co - ma - gflg - nhch 2 ch 2 nh 2 hcl ) as a pale yellow solid ( 0 . 71 g , 72 %). general procedure c was followed using n , n ′- dimethylethylenediamine ( 0 . 47 g , 5 . 36 mmol ) and poly ( hpma - co - ma - gflg - onp ) ( 1 . 0 g ) to yield poly ( hpma - co - ma - gflg - n ( me ) ch 2 ch 2 nhme hcl ) as an off - white solid ( 0 . 78 g ). general procedure b was followed using poly ( hpma - co - ma - gflg - n ( me ) ch 2 ch 2 nhme ) ( 200 mg , 0 . 108 mmol ) and chloroacetylcarbamoylfumagillol ( 86 mg , 0 . 213 mmol ) to yield poly ( hpma - co - ma - gflg - n ( me ) ch 2 ch 2 n ( me ) ch 2 c ( o ) nhc ( o ) 2 - fumagill - 6 - yl ) as a pale yellow solid ( 180 mg ). a solution of p - nitrophenyl fumagill - 6 - yl carbonate ( 400 mg , 0 . 89 mmol ) and ( r )- 2 - amino - 3 - methyl - 1 - butanol ( 280 mg , 2 . 71 mmol ) were stirred in ethanol ( 10 ml ) at room temperature for 12 hours . the yellow solution was concentrated and the residue purified by flash chromatography ( methanol / methylene chloride ) to yield n -[( 2r ) l - hydroxy - 2 - methylbutan - 2 - yl ] carbamoylfumagillol ( 340 mg , 0 . 83 mmol ) as a colorless oil . general procedure d was followed using p - nitrophenyl fumagill - 6 - yl carbonate ( 150 mg ) in ethanol ( 10 ml ) and 6 - aminohexanol ( 48 mg ). the product was isolated as a colorless oil ( 110 mg , 78 %). general procedure d was followed using p - nitrophenyl fumagill - 6 - yl carbonate ( 100 mg ) in ethanol ( 3 ml ) and thf ( 1 ml ) and cycloleucinol ( 52 mg ) to afford n -[ 1 -( hydroxymethyl ) cyclopentyl ] carbamoylfumagillol as an oil ( 50 mg ). general procedure d was followed using p - nitrophenyl fumagill - 6 - yl carbonate ( 100 mg ) in ethanol ( 3 ml ) and thf ( 2 ml ) and 2 - amino - 2 - methylpropanol ( 40 mg ) to afford n -( 1 - hydroxy - 2 - methylpropan - 2 - yl ) carbamoylfumagillol as an oil ( 37 mg ). general procedure d was followed . the s - prolinol ( 68 mg , 0 . 67 mmol ) was reacted with p - nitrophenyl fumagill - 6 - yl carbonate ( 150 mg , 0 . 335 mmol ) in ethanol ( 4 ml ) the product was purified by flash chromatography ( methanol / methylene chloride ) to yield fumagill - 6 - yl ( 2s )- 2 -( hydroxymethyl ) pyrrolidine - 1 - carboxylate as a white foam ( 81 mg , 63 %). a solution of fumagill - 6 - yl ( 2s )- 2 -( hydroxymethyl ) pyrrolidine - 1 - carboxylate ( 330 mg ) in methylene chloride ( 2 . 1 ml ) was cooled to 0 ° c . and chloroacetylisocyanate ( 115 mg ) in methylene chloride ( 1 . 5 ml ) was added dropwise . after 40 minutes , the mixture was diluted with methylene chloride ( 20 ml ) and the organic phase washed with water ( 3 ×). the organic phase was dried ( na 2 so 4 ) and evaporated to yield fumagill - 6 - yl ( 2s )- 2 -({[( chloroacetyl ) carbamoyl ] oxy } methyl ) pyrrolidine - 1 - carboxylate as a white foam ( 400 mg ). general procedure b was followed using chloroacetylcarbamoyl [( 2r )- 1 - hydroxy - 3 - methylbutan - 2 - yl ] carbamoylfumagillol ( 120 mg ) ( and poly ( hpma - co - ma - gflg - nhch 2 ch 2 nhme ) ( 200 mg ) with diea ( 57 mg ) in dmf ( 5 ml ) to yield 2 - poly [ hpma - co - ma - gflg - nch 2 ch 2 n ( me )]- acetylcarbamoyl -[ 1 - hydroxy - 3 - methylbutan - 2 - yl ] carbamoylfumagillol ( 200 mg , 80 %). general procedure b was followed using the fumagill - 6 - yl ( 2s )- 2 -( chloroacetylcarbamoylhydroxymethyl ) pyrrolidine - 1 - carboxylate ( 90 mg ) ( and poly ( hpma - co - ma - gflg - nhch 2 ch 2 nhme ) ( 200 mg ) with diea ( 57 mg ) in dmf ( 5 ml ) to yield fumagill - 6 - yl 2 - poly [ hpma - co - ma - gflg - nch 2 ch 2 n ( me )]- acetylcarbamoylhydroxymethyl ) pyrrolidine - 1 - carboxylate as a pale yellow solid ( 150 mg , 60 %). a solution of 1 , 6 - diaminohexane ( 0 . 13 g ) in methanol ( 8 ml ) was cooled to 0 ° c . and p - nitrophenyl fumagill - 6 - yl carbonate ( 0 . 13 g ) in methanol ( 2 ml ) was added dropwise . the solvent was reduced to about 2 ml by rotary evaporation . ethyl acetate was added and the organic phase was washed with water , 0 . 1 n naoh , water , brine and dried with sodium sulfate . the solvent was evaporated and the residue dissolved in ethanol ( 15 ml ). dl - tartaric acid ( 16 mg ) was added , the solution was stored overnight and then evaporated to about 0 . 5 ml . ether was added and a white solid formed . the solid was collected by filtration , washed with ether and dried to yield the tartrate salt of n -( 6 - aminohexyl ) carbamoylfumagillol ( 74 mg ). general procedure c was followed using 1 , 6 - diaminohexane ( 621 mg , 5 . 36 mmol ) and poly ( hpma - co - ma - gflg - onp ) ( 1 . 0 g ). the crude product was purified by tff ( 5 k ) using aqueous nacl ( 25 mm ) and then acidified to ph 4 . 0 with 0 . 1 m hcl and further purified by tff with water to yield poly [ hpma - co - ma - gflg - nh ( ch 2 ) 6 nh 2 hcl ] as an off - white solid ( 860 mg ). to a solution of the alcohol n -[( 2r ) l - hydroxy - 2 - methylbutan - 2 - yljcarbamoylfumagillol ( 1 . 11 g ) in methylene chloride at 0 ° c . under n 2 was added dmap ( 660 mg , 5 . 40 mmol ) followed by the portionwise addition of p - nitrophenyl chloro formate ( 810 mg ). the reaction mixture was stirred at 0 ° c . for 1 hour . the solvent was evaporated and the resulting residue was dissolved in etoac and washed with water , brine and dried ( na 2 so 4 ). evaporation of etoac provided the crude product , which was purified by flash chromatography ( silica , eluting with 100 % hexanes and then with 2 - 30 % etoac ). the fractions containing pure product were combined and evaporated to isolate n -[( 2r ) 1 -( p - nitrophenolcarbonylhydroxy - 2 - methylbutan - 2 - yl ] carbamoylfumagillol ( 1 . 25 g , 80 %) as a white solid . following general procedure e , dimethylalcohol ( 60 mg ), p - nitrophenyl fumagill - 6 - yl carbonate ( 46 mg ), and dmap ( 37 mg ) were reacted in methylene chloride ( 8 ml ). the reaction mixture was diluted with ethyl acetate and washed with water ( 3 ×) and then brine . the organic phase was dried ( na 2 so 4 ) and evaporated to a yellow foam ( 87 mg ) which was used without further purification . following general procedure e , n -[ 1 -( hydroxymethyl ) cyclopentyl ] carbamoylfumagillol ( product from example 14 , 74 mg ), p - nitrophenyl chloroformate ( 53 mg ), and dmap ( 43 mg ) were reacted in methylene chloride ( 5 ml ). after the extractive workup , n -[ 1 -( p - nitrophenoxycarbonylhydroxymethyl ) cyclopentyl ] carbamoylfumagillol ( 100 mg ) was used without further purification . synthesis of poly [ hpma - co - ma - gflg - nh ( ch 2 ) 6 nhcarbamoyl -[ 1 - hydroxy - 3 - methylbutan - 2 - yl ] carbamoylfumagillol ] and general procedure f to a solution of polymer ( 400 mg ) and p - nitrophenyl n -[( 2r ) l - hydroxy - 3 - methylbutan - 2 - yl ] carbamoylfumagill - 6 - yl carbonate ( 240 mg ) in dmf ( 8 ml ) at 0 ° c . was added diea ( 0 . 11 g ) dropwise . the solution was stirred at 0 ° c . for one hour and allowed to warm to room temperature . after 3 days , the solvent was evaporated and water ( 80 ml ) was added . the aqueous phase was extracted with ethyl acetate ( 500 ml total ) until none of the starting carbonate was detectable by ms . the aqueous phase was purified by tff ( 10 k ) and the retentate lyophilized to yield the conjugate as a white solid ( 380 mg , 77 %). 1 h nmr ( dmso - d6 ): δ 8 . 25 ( bs , 2h , amide - nh ), 8 . 0 ( bs , 1h , amide - nh ), 7 . 70 ( bs , 2h , amide - nh ), 7 . 10 - 7 . 30 ( m , 15h , phenylalanine and amide - nh ), 7 . 10 ( bt , 1h , nh - fum ), 6 . 92 ( bd , 1h , nh - fum ), 5 . 26 ( m , h - 5 - fum ), 5 . 18 ( bt , alkene - fum ), 4 . 50 - 4 . 80 ( m , 1h , phenylalanine alpha proton ), 4 . 0 - 4 . 21 ( m , 1h , leucine alpha proton ), 3 . 50 - 3 . 84 ( m , 19h ), 3 . 29 ( s , 3h , ome - fum ), 2 . 80 - 3 . 10 ( m , 28h ), 2 . 51 ( d , 1h , j = 4 . 4 hz , h - 2 - fum ), 2 . 19 ( m , 2h , allylic - fum ), 0 . 82 - 1 . 92 [ m , 131h { 1 . 84 ( m , 2h , fum ), 1 . 72 ( s , 3h , fum - me ), 1 . 60 ( s , 3h , fum - me ), 1 . 09 ( s , 3h , fum - me ), 0 . 84 ( dd , 6h , fum - isopropyl }]. general procedure f was followed using poly ( hpma - co - ma - gflg - nhch 2 ch 2 nh 2 hcl ) ( 200 mg ), p - nitrophenyl fumagill - 6 - yl carbonate ( 100 mg ) and diea ( 57 mg ) in dmf ( 10 ml ). the product was purified by tff ( 10 k ) with water and lyophilized to yield the conjugate as a pale yellow solid ( 160 mg ). general procedure f was followed using poly ( hpma - co - ma - gflg - n ( me ) ch 2 ch 2 nhme hcl ) ( 200 mg ), p - nitrophenyl fumagill - 6 - yl carbonate ( 100 mg ) and diea ( 57 mg ) in dmf ( 5 ml ). the product was purified using tff ( 10 k ) with water and lyophilized to yield the conjugate as an off - white solid ( 180 mg ). general procedure f was followed using poly ( hpma - co - ma - gflg - nhch 2 ch 2 nh 2 hcl ) ( 200 mg ), p - nitrophenyl dihydrofumagill - 6 - yl carbonate ( 200 mg ) and diea ( 57 mg ) in dmf ( 10 ml ). the product was purified by tff ( 10 k ) with water ( 150 ml ) and lyophilized to yield poly ( hpma - co - ma - gflg - n -( 2 - aminoethyl ) carbamoyldihydrofumagillol as a pale yellow solid ( 160 mg ). general procedure f was followed using poly ( hpma - co - ma - gflg - nhch 2 ch 2 ch 2 nh 2 hcl ) ( 220 mg ), p - nitrophenyl fumagill - 6 - yl carbonate ( 110 mg ) and diea ( 63 mg ) in dmf ( 6 ml ). the solvent was evaporated and the resulting solution diluted with water . the aqueous phase was extracted with ethyl acetate and purified by tff using 350 ml of water . the retentate was lyophilized to yield poly [ hpma - co - ma - gflg - n -( 3 - aminopropyl ) carbamoylfumagillol ] as a light pink powder ( 200 mg ). general procedure f was followed using poly [ hpma - co - ma - gflg - n -( 6 - aminohexylamine . hcl )] ( 1 . 0 g ), p - nitrophenyl fumagill - 6 - yl carbonate ( 0 . 48 g ) and diea ( 0 . 27 g ) in dmf ( 25 ml ). the solvent was evaporated and the solution diluted with water . the aqueous phase ( 300 ml ) was extracted with ethyl acetate ( 700 ml total ) and purified by tff using an additional 350 ml of water . the retentate was lyophilized to yield poly [ hpma - co - ma - gflg - n -( 6 - aminohexyl ) carbamoylfumagillol ] as a light pink solid ( 0 . 9 g ). 1 h nmr ( dmso - d6 ): δ 8 . 10 - 8 . 35 ( m , 3h , amide - nh ), 7 . 90 - 8 . 10 ( m , amide - nh ), 7 . 05 - 7 . 32 ( m , 22h , amide - nh ) 5 . 27 ( m , h - 5 - fum ), 5 . 18 ( bt , alkene - fum ), 4 . 60 - 4 . 90 ( m , 14h ), 4 . 50 - 4 . 60 ( m , 1h , phenylalanine alpha proton ), 4 . 10 - 4 . 30 ( m , 1h , leucine alpha proton ), 3 . 40 - 3 . 80 ( m , 21h ), 3 . 27 ( s , 3h , ome - fum ), 2 . 80 - 3 . 20 ( m , 33h ), 2 . 56 ( d , 1h , h = 3 . 90 hz , h - 2 - fum ), 2 . 18 ( m , 2h , allylic - fum ), 0 . 37 - 2 . 0 [ m , 147h { 1 . 70 ( s , 3h , fum - me ), 1 . 60 ( s , 3h , fum - me ), 1 . 07 ( s , 3h , fum - me )}]. general procedure f was followed using poly [ hpma - co - ma - gflg - n -( trans - 4 - aminocyclohexylamine . hcl )] ( 1 . 0 g ), p - nitrophenyl fumagill - 6 - yl carbonate ( 0 . 48 g ) and diea ( 0 . 27 g ) in dmf 25 ml . the solvent was evaporated and the solution diluted with water . the aqueous phase ( 300 ml ) was extracted with ethyl acetate ( 700 ml total ) and purified by tff using an additional 350 ml of water . the retentate was lyophilized to yield poly [ hpma - co - ma - gflg - n -( trans - 4 - aminocyclohexyl ) carbamoylfumagillol ] as a light pink solid ( 0 . 9 g ). 1 h nmr ( dmso - d6 ): δ 7 . 90 - 8 . 35 ( m , 4h , amide - nh ), 7 . 0 - 7 . 70 ( m , 25h , phenylalanine and amide - nh ), 5 . 26 ( m , h - 5 - fum ), 5 . 18 ( bt , alkene - fum ), 4 . 60 - 4 . 90 ( m , 14h ), 4 . 50 - 4 . 60 ( m , 1h , phenylalanine alpha proton ), 4 . 10 - 4 . 30 ( m , 1h , leucine alpha proton ), 3 . 40 - 3 . 80 ( m , 21h ), 3 . 26 ( s , 3h , ome - fum ), 2 . 80 - 3 . 10 ( m , 31h ), 2 . 17 ( m , 2h , allylic - fum ), 0 . 37 - 2 . 0 [ m , 166h { 1 . 69 ( s , 3h , fum - me ), 1 . 59 ( s , 3h , fum - me ), 1 . 07 ( s , 3h , fum - me )}] to a suspension of poly [ hpma - co - ma - gflg - oh ] ( 200 mg ), n -[ 2 -( 4 - aminophenyl ) ethyl ] carbamoylfumagillol ] ( 100 mg ) and diea ( 75 mg ) in dmf ( 6 ml ) at 0 ° c . was added edci ( total 44 mg ) in portions . the solution was allowed to warm to room temperature and stirred overnight . the solvent was evaporated , the residue was suspended in water and the suspension extracted with etoac ( 7 times , total 250 ml ). the aqueous phase was purified by tff ( 10 k ) using water ( 350 ml ). the retentate was lyophilized to afford the polymer as a white fluffy solid ( 170 mg ). to a solution of 2 , 2 ′-( ethylenedioxy ) bis ( ethylamine ) ( 0 . 79 g , 5 . 34 mmol ) in distilled water ( 20 ml ) at 0 ° c . ( ph = 11 . 56 ) was added cone . hcl until ph of the solution was 9 . 01 ( measured by ph meter ). poly ( hpma - co - ma - gflg - onp ) ( 1 . 0 g , 0 . 534 mmol ) in dmf ( 6 ml ) and h 2 o ( 10 ml ) was added to the amine - containing solution dropwise over a period of 15 minutes and the reaction mixture was stirred at 0 ° c . for 15 minutes . the reaction mixture was then allowed to warm to room temperature and stirred for 2 hours . the ph of the solution was measured to be 8 . 15 . the reaction mixture was diluted with distilled water ( 300 ml ) and filtered through a vacucap filter , reaction flask was washed with water ( 100 ml ). the polymer solution was concentrated to 40 ml by tff ( 10 k ) and was washed with 25 mm nacl ( 800 ml ) to remove p - nitrophenol , the ph was then adjusted to 4 with 0 . 1 m hcl and finally washed with water ( 400 ml ). the pure polymer solution was lyophilized to isolate poly [ hpma - co - ma - gflg - nh - 2 -[ 2 -( 2 - aminoethoxy ) ethoxy ] ethylamine - hcl ] as a pink solid ( 800 mg , 78 %). to a mixture of p - nitrophenyl fumagill - 6 - yl carbonate ( 93 mg , 0 . 208 mmol ) and poly [ hpma - co - ma - gflg - n - 2 -[( 2 -( 2 - aminoethoxy )] ethoxy ) ethylamine - hcl ] ( 200 mg , 0 . 104 mmol ) in anhydrous dmf ( 5 ml ) at 0 ° c . under n 2 was added diea ( 57 mg , 0 . 416 mmol ). the reaction mixture was allowed to warm to room temperature and stirred for 12 hours . the solvent was removed under reduced pressure and the resulting residue was suspended in water ( 30 ml ) and extracted with etoac ( aqueous and organic phases from the emulsion formed were separated using centrifuge ) to remove excess of p - nitrophenyl fumagill - 6 - yl carbonate and p - nitrophenol . nitrogen was passed through the aqueous solution to remove traces of etoac and it was purified using tff ( 5k ) by washing it with water ( 150 ml ) to remove diea hydrochloride . the polymer solution was lyophilized to obtain the desired polymer conjugate poly [ hpma - co - ma - gflg - n - 2 -[ 2 -( 2 - aminoethoxy ) ethoxy ethyl ] carbamoylfumagillol ] ( 220 mg , 95 %) as an off - white solid . to a mixture of p - nitrophenyl fumagill - 6 - yl carbonate ( 300 mg , 0 . 67 mmol ) and poly [ hpma - co - ma - gflg - n - 10 -[ decylamine - hcl ] ( 300 mg , 0 . 15 mmol ; made in a similar manner to example 33 except 1 , 10 - diaminodecane was used as the amine ) in anhydrous dmf ( 6 ml ) at 0 ° c . under n 2 was added diea ( 83 mg , 0 . 64 mmol ). the reaction mixture was allowed to warm to room temperature and stirred for 12 hours . the solvent was removed under reduced pressure and the resulting residue was suspended in water ( 30 ml ) and extracted with etoac ( aqueous and organic phases from the emulsion formed were separated using a centrifuge ) to remove excess of p - nitrophenyl fumagill - 6 - yl carbonate and p - nitrophenol . nitrogen was passed through the aqueous solution to remove traces of etoac . the crude aqueous solution was purified using tff ( 10k ) by washing with water ( 150 ml ) to remove diea hydrochloride . the polymer solution was lyophilized to obtain the desired polymer conjugate poly [ hpma - co - ma - gflg - nh -( 10 - aminodecyl ) carbamoylfumagillol ] ( 300 mg , 87 %) as an off - white solid . to a solution of p - nitrophenyl fumagill - 6 - yl carbonate ( 200 mg ) in ethanol ( 5 ml ) at 0 ° c . was added n -( 2 - aminoethyl ) acetamide ( 0 . 132 ml ). the solution was stirred at 0 ° c . for one hour and overnight at room temperature . the reaction was diluted with ethyl acetate , washed with water . the aqueous phase was back extracted with ethyl acetate and the combined organic phases dried ( mgs ) 4 ). the crude product was purified by flash chromatography . the product was a yellow solid ( 120 mg ). to a solution of p - nitrophenyl fumagill - 6 - yl carbonate ( 400 mg ) and n - ε - cbz - o - methyl - l - lysine hydrochloride in dmf ( 10 ml ) at 0 ° c . was added diea ( 350 mg ). the reaction was warmed to room temperature and the stirred overnight . the solution was diluted with ethyl acetate , washed with 0 . 1 n naoh ( 4 ×), water , and then brine . the organic phase was dried ( na 2 so 4 ), filtered and evaporated . the residue was purified by flash chromatography ( silica ; methanol / methylene chloride ) to provide the n - ε - cbz - o — methyl - lysine - carbonylfumagillol ( 550 mg ). to a solution of n - ε - cbz - o - methyl - lysine - carbonylfumagillol ( 200 mg ) in ethyl acetate ( 10 ml ) was added pto2 monohydrate ( 20 mg ) and the solution hydrogenated at stp for 20 minutes . reduction of the double bond but not deprotection of the cbz was verified by ms . the solution was filtered and evaporated . the residue was dissolved in methanol ( 10 ml ) and 10 % pd / c ( 20 mg ) was added . the solution was hydrogenated under stp for 5 minutes , and removal of the cbz group confirmed by ms . the solution was filtered with celite , and evaporated to provide o - methyl - l - lys - carbonyldihydrofumagillol as a colorless oil ( 0 . 15 g ). to a stirred solution of o - methyl - l - lys - carbonyldihydrofumagillol ( 150 mg , 0 . 32 mmol ) in dmf ( 6 ml ) was added poly ( hpma - co - ma - gflg - onp ) ( 300 mg ) at 0 ° c . the resulting yellow solution was allowed to warm to room temperature overnight . the solvent was evaporated and the residue suspended in water ( 30 ml ). the suspension was extracted six times with ethyl acetate ( total ethyl acetate volume = 150 ml ). the aqueous phase was lyophilized to provide the polymer conjugate as a white solid ( 180 mg , 63 %). to a solution of chloroacetylcarbamoylfumagillol ( 500 mg ) and 4 - aminothiophenol ( 180 mg ) in dmf ( 10 ml ) at 0 ° c . was added diea ( 193 mg ). the solution was stirred at 0 ° c . for 1 . 5 hours and then at room temperature overnight . the solution was diluted with water and extracted with ethyl acetate . purification by flash chromatography ( meoh / ch 2 cl 2 ) followed by a second chromatography ( etoac / hexanes ) gave 4 - aminophenylthioacetylcarbamoylfumagillol ( 460 mg ). to a solution of poly ( hpma - co - ma - gflg - onp ) ( 200 mg ) and 4 - aminophenylthioacetylcarbamoylfumagillol ( 100 mg ) in dmf ( 5 ml ) at 0 ° c . was added diea ( 106 mg ). the solution was allowed to warm to room temperature and then heated to 50 ° c . and stirred overnight . the solvent was evaporated and the residue suspended in water . the suspension was extracted with ethyl acetate ( 150 ml ). the aqueous phase was lyophilized to yield the polymer conjugate as a white solid ( 180 mg ). to a solution of poly ( hpma - co - ma - gflg - nhch 2 ch 2 nh 2 hcl ) ( 200 mg ) and n -( 5 - carboxypentyl ) carbamoylfumagillol ( 96 mg ) in dmf ( 6 ml ) at 0 ° c . was added diea ( 104 mg ) followed by n -( 3 - dimethylaminopropyl )- n ′- ethylcarbodiimide hydrochloride ( 42 mg ). the solution was allowed to warm to rt and stirred overnight . the solvent was evaporated and the residue dissolved in water ( 50 ml ) and extracted with ethyl acetate ( 200 ml ). the aqueous phase was purified by tff with water ( 450 ml ). the retentate was lyophilized to yield the polymer ( 200 mg ) as a pale yellow solid . to a solution of poly [ hpma - co - ma - gflg - n ( ch 2 ) 6 nh 2 hcl ] ( 216 mg ), 2 - carboxyethylcarbamoylfumagillol ( 91 mg ) in dmf ( 8 ml ) at 0 ° c . was added diea ( 118 mg ) followed by n -( 3 - dimethylaminopropyl )- n ′- ethylcarbodiimide hydrochloride ( 88 mg ). the solution was allowed to warm to room temperature and stirred overnight . the solvent was evaporated and the residue dissolved in water ( 50 ml ) and extracted with ethyl acetate ( 200 ml ). the aqueous phase was purified by tff ( 10 k ) with water ( 1 l ). the retentate was lyophilized to yield the polymer ( 170 mg ) as a pale yellow solid . general procedure f was followed using poly ( hpma - co - ma - gflg - nhch 2 ch 2 ch 2 nh 2 hcl ) ( 220 mg ) and carbonate ( example 24 , 100 mg ) in dmf ( 6 ml ) with diea ( 63 mg ). the reaction was extracted with ethyl acetate . following tff ( 10 k ) purification with water , and lyophilization , the product was isolated as a light pink powder ( 140 mg ). general procedure f was followed using poly ( hpma - co - ma - gflg - nhch 2 ch 2 ch 2 nh 2 hcl ) ( 200 mg ) and carbonate ( example 23 , 86 mg ) in dmf ( 5 ml ) with diea ( 57 mg ). extraction was performed with ethyl acetate . following tff purification with water , and lyophilization , the product was isolated as a light pink powder ( 200 mg ). to a solution of aminohexylpolymer ( 600 mg ) and p - nitrophenyl acetate ( 110 mg ) in dmf ( 16 ml ) at 0 ° c . was added diea dropwise . the solution was allowed to warm to room temperature and stirred overnight . the solvent was evaporated and the residue was dissolved in water ( 50 ml ), filtered through a vacu - cap filter with an additional 25 ml of water . the ph was adjusted to 8 . 0 with 0 . 1 m naoh and the solution concentrated to 50 ml ( tff ). the retentate was washed with aqueous nacl ( 25 mm , 450 ml ) until the permeate was almost colorless and then washed with water ( 400 ml ) to a conductivity of 0 . 00 us . the retentate was lyophilized to yield 0 . 59 g of a pink solid . a stock solution of carbamoylfumagillol in dmso was diluted in a 15 ml polypropylene screw top tube with either 5 ml of 10 mm sodium acetate buffer at either ph 4 . 0 or 5 . 3 , or potassium phosphate buffer at ph 6 . 7 or 8 . 0 at 37 ° c . the final concentration of carbamoylfumagillol in the buffer solution was 5 μm . at the appropriate time points , a 50 μl sample was withdrawn and diluted with three volumes of methanol containing propranolol as an internal standard ( one solution was made for the entire study ). the concentration of carbamoylfumagillol in the solution was analyzed by lc / ms / ms over seven days . from ph 5 . 3 to 8 . 0 , less than 20 % decomposition was observed over the seven day period . estimated rate constants are presented in table 1 . selected polymers were analyzed by karl fisher ( qti salem industrial park — bldg . # 5 whitehouse , n . j . 08888 ) to determine the water content of the polymer . the results are summarized below in table 2 . a stock solution , 1 mg / ml , of 2 - mercaptopyrimidine ( 2 . 2 ml ) in methanol - d4 was added to carbamoylfumagillol ( 6 . 4 mg ). one ml of the resulting solution was removed and a second portion of the stock solution was added ( 1 ml ). solid k 2 co 3 was added and the solution monitored by 1 h nmr . a single product was identified , the 1 : 1 adduct of 2 - mercaptopyrimidine and carbamoylfumagillol . the following resonances were used to monitor the reaction by 1 h nmr : 2 - mercaptopyrimidine showed resonances at 6 . 7 ppm ( ih , h - 4 ) and 8 . 1 ppm ( 2h , h - 3 , h - 5 ). the adduct of 2 - mercaptopyrimidine showed resonances at 7 . 2 ppm ( 1h , h - 4 ) and 8 . 5 - 8 . 6 ppm ( 2h , h - 3 , h - 5 ). a stock solution , 1 mg / ml , of 2 - mercaptopyrimidine ( 1 . 1 ml ) in methanol - d4 was added to the polymer conjugate ( 10 mg ). the solution was stirred at room temperature overnight , and analyzed by 1 h nmr to determine the ratio of unreacted thiol ( 8 . 1 ppm ) to reacted thiol ( 8 . 5 - 8 . 6 ppm ). the amount of reacted thiol was expected to be equivalent to the quantity of fumagillol in the polymer conjugate . the acetamide capped polymer containing no epoxide showed no reaction product with 2 - mercaptopyrimidine as indicated in table 3 . the hpma conjugates were made into a 10 × stock solution in ph 5 . 5 buffer . the final reaction was performed by diluting the enzyme and substrate 10 fold into either buffer at ph = 5 . 5 or ph = 6 . 8 . the final enzymatic reaction consisted of 40 nm cathepsin b , approximately 2 . 5 mg / ml test agent , and buffer at 37 ° c . the reaction was stopped at 0 , 2 , 6 , and 24 hour . to stop the reaction , 3 volumes of ice - cold methanol containing propranolol internal standard ( at 1 . 0 μm ) was added and left on ice . the samples were then analyzed by lc / ms / ms . poly ( hpma - co - ma - gflg - nhch 2 ch 2 n ( me ) ch 2 c ( o ) nhc ( o ) 2 - fumagill - 6 - yl ) was shown to release fumagillol , carbamoylfumagillol , and fumagil - 6 - yl ( 2 - aminoethyl ) methylcarbamate . poly ( hpma - co - ma - gflg - n ( me ) ch 2 ch 2 n ( me ) ch 2 c ( o ) nhc ( o ) 2 - fumagill - 6 - yl ) was shown to release fumagillol , carbamoylfumagillol , fumagil - 6 - yl methyl [ 2 -( methylamino ) ethyl ] carbamate , and ethyl { 2 -[( aminoacetyl )( methyl ) amino ] ethyl } methylcarbamate . test compounds , small molecules or polymer conjugates , were dissolved in dimethyl sulfoxide to a stock concentration of 5 mg / ml . the test agents were then diluted to an intermediate concentration at 200 μg / ml in 10 % dmso . further dilutions were completed serially 3 - fold in 10 % dmso to produce 12 decreasing concentrations for in - vitro analysis . to achieve the target concentrations of the in - vitro assays , 1 of the intermediate drug preparation was delivered to the cells ( seeded in a volume of 50 μl ). the final dmso concentration for the tests was 0 . 2 % for all doses of test agent . cells were exposed to twelve increasing concentrations of formulated test agent from 2 × 10 − 6 to 4 . 0 μg / ml for 72 hours . following 72 hour exposure , 25 μl of celltiter - glo ® reagent was added to each well . the plates were incubated for 60 minutes at 37 ° c . in a humidified incubator . after incubation , luminescence was recorded using the molecular devices analystgt multi - mode reader . data are expressed as the percent cell growth of the untreated ( vehicle ) control calculated from the luminescence signals . the surviving fraction of cells is determined by dividing the mean luminescence values of the test agents by the mean luminescence values of untreated control . the inhibitory concentration value for the test agent ( s ) and control were estimated using prism 5 software ( graphpad software , inc .) by curve - fitting the data using the non - linear regression analysis . the human tumor cell lines a549 and hct - 116 were obtained from american type culture collection ( manassas , va .). the human umbilical vein epithelial cells ( huvec ) were obtained from lonza ( basel , switzerland ). the a549 cells were maintained rpmi 1640 w / l - glut supplemented with 5 % fbs . the hct - 116 cells were maintained in mccoy &# 39 ; s 5a supplemented with 5 % fbs . the huvec line was grown in endothelial growth medium with supplements and growth factors ( bbe , hydrocortisone , hegf , fbs and gentamicin / amphotericin - b ). all cells were house in an atmosphere of 5 % co 2 at 37 ° c . cells were dissociated with 0 . 05 % trypsin and 0 . 02 % edta . the human tumor cell line a549 was obtained from american type culture collection ( manassas , va .). the a549 cells were maintained rpmi 1640 w / l - glut supplemented with 5 % fbs . a549 cells were seeded at 500 cells per well 24 hours prior to test agent exposure in a volume of 50 μl . the cells were housed in an atmosphere of 5 % co 2 at 37 ° c . cells were dissociated with 0 . 05 % trypsin and 0 . 02 % edta . the human tumor cell lines a549 and hct - 116 were obtained from american type culture collection ( manassas , va .). the hct - 116 cells were maintained in mccoy &# 39 ; s 5a supplemented with 5 % fbs . hct - 116 cells were seeded at 500 cells per well 24 hours prior to test agent exposure in a volume of 50 μl . the cells were housed in an atmosphere of 5 % co 2 at 37 ° c . cells were dissociated with 0 . 05 % trypsin and 0 . 02 % edta . cells were exposed to twelve increasing concentrations of formulated test agent from 2 . 3 × 10 − 6 to 4 . 02 μg / ml for 72 hours . following 72 hour exposure , 25 μl of celltiter - glo ® reagent was added to each well . the plates were incubated for 60 minutes at 37 ° c . in a humidified incubator . after incubation , luminescence was recorded using the molecular devices analystgt multi - mode reader . the human umbilical vein epithelial cells ( huvec ) were obtained from lonza ( basel , switzerland ). the huvec line was grown in endothelial growth medium with supplements and growth factors ( bbe , hydrocortisone , hegf , fbs and gentamicin / amphotericin - b ). all cells were housed in an atmosphere of 5 % co 2 at 37 ° c . cells were dissociated with 0 . 05 % trypsin and 0 . 02 % edta . huvec cells were seeded at 1000 cells per well 24 hours prior to test agent exposure in a volume of 50 μe . cells were exposed to twelve increasing concentrations of formulated test agent from 2 . 3 × 10 − 6 to 4 . 02 μg / ml for 72 hours . following 72 hour exposure , 25 of celltiter - glo ® reagent was added to each well . the plates were incubated for 60 minutes at 37 ° c . in a humidified incubator . after incubation , luminescence was recorded using the molecular devices analystgt multi - mode reader . the ratio of the huvec ic50 / a549 ic 50 is presented in table 10 below . when compared to carbamoylfumagillol and tnp - 470 , the polymer conjugates are more active against the tumor cells , a549 , than against the normal huvec cells . cells were treated as in example 51 except that at the end of 72 hour exposure to test agent , the cells were frozen (− 70 ° c .) and stored for subsequent evaluation by lc / ms . metabolites identified from the cells treated with poly [ hpma - co - ma - gflg - n -( 6 - aminohexyl ) carbamoylfumagillol ] include n -( 6 - aminohexyl ) carbamoylfumagillol , fumagill - 6 - yl { 6 -[( aminoacetyl ) amino ] hexyl } carbamate , and the epoxide hydrolysis product , ( 35 ′, 7ar )- 7a -( hydroxymethyl )- 4 - methoxy - 3 - methyl - 2 -( 3 - methylbut - 2 - en - 1 - yl ) octahydro - 1 - benzofuran - 3 - ol - 5 - yl 6 - aminohexyl carbamate . c57b16 female mice ( n = 8 ) were injected ( tail vein ) with 1 × 10 5 b16 - f10 tumor cells . after one day , mice were treated with polymer conjugates as solutions in saline ( iv administration , q4d , four doses except that in one group 0 - 7175 was administered as a single dose on day 1 ). tnp - 470 was used as a positive control , saline as a negative control . mice were sacrificed after 15 days . treatment outcomes were assessed by counting lung metastases . c57b16 female mice ( n = 8 ) were injected ( tail vein ) with 1 × 10 5 b16 - f10 tumor cells . after one day , mice were treated with polymer conjugates as solutions in saline ( iv administration , q4d , four doses ). the weight changes for three polymers relative to saline vehicle control and tnp - 470 are shown in fig1 . weight changes are referenced to the group weight at time zero . all polymers were dosed at 100 mg / kg . polymer doses and the saline vehicle were administered on days 1 , 5 , and 9 . the 100 mg / kg polymer doses and tnp - 470 showed a reduction in metastases from 44 - 63 % relative to the saline control . c57b16 female mice ( n = 8 ) were injected ( tail vein ) with 1 × 10 5 b16 - f10 tumor cells . after one day , mice were treated with polymer conjugates as solutions in saline ( iv administration , q4d , four doses ). the weight changes for one polymer at three different doses relative to control are shown in fig2 . weight changes are referenced to the group weight at time zero . the polymer doses were 50 mg / kg , or 100 mg / kg . polymer doses were administered on days 1 , 5 , and 9 . the 25 , 50 and 100 mg / kg polymer doses and tnp - 470 showed a reduction in metastases from 45 - 61 % relative to the saline control . nu / nu female mice ( n = 8 ) were injected ( subcutaneous right flank ) with 5 × 10 6 a549 tumor cells ( inoculation vehicle 50 % media / matrigel , subcutaneous right flank ). after the tumors reached a size of 116 mg , mice were treated with polymer conjugates as solutions in saline ( 20 mg / kg , iv administration , q4d , six doses ) or with a control polymer without a metap2 inhibitory moiety ( 100 mg / kg , q4d ) or with tnp - 470 ( 30 mg / kg , qod , nine doses ). tumor growth was determined by measuring tumor size in two directions with calipers at intervals of a few days . the tumor size vs time is shown in fig3 . the doses used are summarized in the table below . the change in body weight vs time for the a549 xenograft experiment is shown in fig4 . the mice in the active polymer treated groups show similar weight changes to the tnp - 470 group and the control groups . all of the u . s . patents and u . s . patent application publications cited herein are hereby incorporated by reference . those skilled in the art will recognize , or be able to ascertain using no more than routine experimentation , many equivalents to the specific embodiments of the invention described herein . such equivalents are intended to be encompassed by the following claims .
one aspect of the invention provides polymer conjugated metap2 inhibitors . while not being bound by any particular theory , it is believed that coupling the metap2 inhibitory core via the linkers described herein provides compounds with superior efficacy to the parent small molecules and superior pharmacokinetic profiles . in one aspect of the invention , the polymer conjugated metap2 inhibitors are useful in methods of treating disease , comprising administering to a subject in need thereof a therapeutically effective amount of a polymer conjugated metap2 inhibitor .