the ( chloroethyl ) nitrosourea analogues of 2'-deoxyuridine and 2'-deoxy-5-fluorouridine , 3'- [ 3- ( 2-chloroethyl ) -3-nitrosoureido ] -2',3'-dideoxyuridine ( 3'-cdunu , 7 ) and 3'- [ 3- ( 2-chloroethyl ) -3-nitrosoureido ] -2,3'-dideoxy-5-fluorouridine ( 3'-cfdunu , 8 ) , have been synthesized by treatment of the corresponding 3'-amino nucleosides with chloroethyl isocyanate , followed by nitrosation of the resulting ureas .
C0011535
deoxyuridine
C0016343
2