2-{2-[2-(2-{(2R)-2-[(2S)-4-Carboxy-2-(3-carboxypropanoylamino)butanoylamino]-4-carboxybutanoylamino}(2S)-4-methylpentanoylamino)(2S)-3-methylpentanoylamino](2S)-3-cyclohexylpropanoylamino}(2S)pentanoic acid AIDS-170466 AIDS170466