2-[2-(2-{2-[(2R)-4-Carboxy-2-(3-carboxypropanoylamino)butanoylamino](2S)-4-methylpentanoylamino}(2S)-3-methylpentanoylamino)(2S)-3-cyclohexylpropanoylamino](2S)pent-4-enoic acid AIDS-170453 AIDS170453