1Nap-SO2-Asn-(2S,3S)-AHPBA-Pro-NH-tBu AIDS-163718 AIDS163718 L-Aspartamide, N1-[(1S,2S)-3-[(2S)-2-[[(1,1-dimethylethyl)amino]carbonyl]-1-pyrrolidinyl]-2-hydroxy-3-oxo-1-(phenylmethyl)propyl]-N2-(1-naphthalenylsulfonyl)-