Selective prolyl endopeptidase inhibitors were elaborated by modification o
f the structure of SUAM-1221, by using a CoMFA study and protein crystallog
raphy. The most active representatives of omega-(N-hetaryl)alkanoylprolylpy
rrolidines, containing 2- or 3-methylene chain links have high activity (IC
50 10(-9) similar to 10(-11))and exhibit significant in vivo activities. (C
) 2000 Elsevier Science S.A. All rights reserved.