(S)-2-({1-[5-((S)-1-t-Butoxycarbonyl-2-phenyl-ethylcarbamoyl)-2H-pyrazol-3-yl]-methanoyl}-amino)-3-phenyl-propionic acid t-butyl ester 1H-Pyrazole-3,5-dicarbaldehyde bis[L-phenylalanine-t-butyl ester AIDS-087847 AIDS087847