the compounds i and ii were more selective towards butyrylcholinesterase than towards acetylcholinesterase and carboxylesterase ( kii two orders of magnitude higher ) because of effective binding in the butyrylcholinesterase active center ( k alpha 10 ( -8 ) -- 10 ( -9 ) m ) due to hydrophobic interaction .
C0001044
acetylcholinesterase
C0008429
butyrylcholinesterase