(S)-N-2,2-Dimethyl-3-[(2S,3S)-2-hydroxy-3-[(S)-2-benzyloxycarbonylaminosuccinamyl]amino- 4-phenylbutanoyl]pyrrolidine-2-carboxamide AIDS-096890 AIDS096890 Benzyloxycarbonyl-Ans-Allophenylnorstatine-Pro-NH-CH2tBu Z-Ans-Apns-Pro-NH-CH2tBut