1-((2S,3S)-2-Hydroxy-3-{[N2-(phenoxyacetyl)-L-asparaginyl]amino}-4-phenylbutanoyl)-L-prolyl-L-alloisoleucyl-L-valinamide- AIDS-163643 AIDS163643 PHO-CH2CO-Asn-(2S, 3S)-AHPBA-Pro-Ile-Val-NH2