AIDS-163677 AIDS163677 Boc-Asn-(2S, 3S)-AHPBA-Pro-NH-tBu {(S)-1-[(1S,2S)-1-Benzyl-3-(2-tert-butylcarbamoyl-pyrrolidin-1-yl)-2-hydroxy-3-oxo-propylcarbamoyl]-2-carbamoyl-ethyl}-carbamic acid tert-butyl ester