Ra. Smith et al., DESIGN, SYNTHESIS, AND ACTIVITY OF CONFORMATIONALLY-CONSTRAINED MACROCYCLIC PEPTIDE-BASED INHIBITORS OF HIV PROTEASE, Bioorganic & medicinal chemistry letters, 4(18), 1994, pp. 2217-2222
Conformationally-constrained macrocyclic peptide-based hydroxyethylami
nes, with 17- to 19-membered ring systems, have been designed and synt
hesized as HIV protease inhibitors. Structure-activity relationships w
ere consistent with molecular modeling studies, and certain cyclic inh
ibitors were developed with HIV protease IC50 values of similar to-1 n
M, and antiviral activities (HIV-1/RF infected MT-2 cells) of EC(50) 4
-8 nM.