(2S,3R)-3-[(S)-2-((S)-2-Amino-3-phenyl-propanoylamino)-3-hydroxy-propanoylamino]-N-cyclohexylmethyl-2-hydroxy-4-phenyl-butyramide AIDS-163622 AIDS163622 H-Phe-Ser-(2R, 3S)-AHPBA-NH-CH2-C6H11