((S)-1-{(1S,2S)-1-Benzyl-3-[(S)-2-(cyclohexylmethyl-carbamoyl)-pyrrolidin-1-yl]-2-hydroxy-3-oxo-propylcarbamoyl}-2-carbamoyl-ethyl)-carbamic acid benzyl ester AIDS-163651 AIDS163651 PhCH2-O-CO-Asn-(2S, 3S)-AHPBA-Pro-NH-CH2-C6H11