(R)-N-tert-Butyl-3-[(2S,3S)-2-hydroxy-3-[(S)-2-(3-dimethylaminophenoxyacetyl)aminobutanoyl]amino-4-phenylbutanoyl]-5,5-dimethyl-1,3-thiazolidine-4-carboxamide 3-Dapoa-Abu-Val-Apns-Dmt-NHtBu AIDS-096903 AIDS096903 JE-2179