M. Patel et al., THE SYNTHESIS AND EVALUATION OF CYCLIC UREAS AS HIV PROTEASE INHIBITORS - MODIFICATIONS OF THE P1 P1' RESIDUES/, Bioorganic & medicinal chemistry letters, 8(7), 1998, pp. 823-828
Two series of cyclic ureas modified at the P1/P1' residue were prepare
d and evaluated for HIV protease inhibition and whole cell antiviral a
ctivity. Compounds 8b, 10 (3- and 4-pyridylmethyl analogs) and 6b (4-m
ethoxy analog) showed significant improvement in antiviral activity re
lative to lead compounds DMP323 and DMP 450. (C) 1998 The DuPont Merck
Pharmaceutical Company. Published by Elsevier Science Ltd. All rights
reserved.