1Nap-CH2-O-CO-Msa-(2S, 3S)-AHPBA-Pro-NH-tBu AIDS-163680 AIDS163680 N-(tert-butyl)-1-[(2S,3S)-4-Cyclohexyl-2-hydroxy-3-({3-(methylsulfonyl)-N-[(1-naphthylmethoxy)carbonyl]-L-alanyl}amino)butanoyl]-L-prolinamide