Bm. Kim et al., SUBSTITUTED ALKYLPYRIDINES AS P-3' LIGANDS FOR THE HYDROXYETHYLPIPERAZINE CLASS OF HIV-1 PROTEASE INHIBITORS - IMPROVED PHARMACOKINETIC PROFILES, Bioorganic & medicinal chemistry letters, 5(19), 1995, pp. 2239-2244
As a systematic approach to develop HIV-1 protease inhibitors exhibiti
ng desirable pharmacokinetic profiles, hydroxyethylpiperazine series o
f inhibitors containing various mono- or dialkyl-substituted pyridylme
thyl groups have been examined. Very high enzyme inhibitory potency an
d antiviral activity in a whole cell assay were observed with these in
hibitors and, when administered orally to dogs, selected compounds in
this series exhibited prolonged half-lives compared to the non-substit
uted pyridylmethyl compound 1.