(4R)-N-(2-Amino-2-oxoethyl)-3-[(2S,3S)-2-hydroxy-3-({3-(methylsulfonyl)-N-[(1-naphthyloxy)acetyl]-L-alanyl}amino)-4-phenylbutanoyl]-1,3-thiazolidine-4-carboxamide 1Nap-O-CH2CO-Msa-(2S,3S)-AHPBA-Thz-Gly-NH2 AIDS-163747 AIDS163747