1-((2S,3S)-2-Hydroxy-4-phenyl-3-{[N-(3-phenylpropanoyl)-L-leucyl]amino}butanoyl)prolyl-L-alloisoleucyl-L-valinamide AIDS-163671 AIDS163671 PhCH2CH2CO-Leu-(2S, 3S)-AHPBA-Pro-Ile-Val-NH2