(R)-N-tert-Butyl-3-[(2S,3S)-2-hydroxy-3-[(S)-2-(1-napthoxyacetyl)amino-3-methylthiopropionyl]amino-2-hydroxy-4-phenylbutanoyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxamide 3-Papoa-Mta-Apns-Dmt-NHtBu AIDS-096899 AIDS096899