(4S)-4-[(2S)-2-(Acetylamino)-3-phenylpropanoylamino]-4-(N-{(1S,4S,2R,3R)-4-[2-(tert-butoxy)acetylamino]-2,3-dihydroxy-5-phenyl-1-benzylpentyl}carbamoyl)butanoic acid AIDS-092674 AIDS092674