(R)-N-tert-Butyl-3-[(2s,3S)-3-[(S))-2-(1-naphthoxyacetyl)aminopentanoyl]amino-2-hydroxy-4-phenylbutanoyl]-1,3-thiazolidine-4-carboxamide 1-Nap-O-CH2CO-Nva-(2S,3S)-AHPBA-Thz-NH-tBu 1-Noa-nPr-Apns-Pro-NHtBu AIDS-096892 AIDS096892