(S)-2-{(S)-2-[(1-{5-[(S)-1-((S)-1-t-Butoxycarbonyl-2-methyl-propylcarbamoyl)-2-phenyl-ethylcarbamoyl]-1H-imidazol-4-yl}-methanoyl)-amino]-3-phenyl-propanoylamino}-3-methyl-butyric acid t-butyl ester 1H-Imidazole-4,5-dicarbaldehyde bis[L-phenylalanine-Lvaline peptidyl-t-butyl ester AIDS-087845 AIDS087845