1-[(3S)-3-({N2-[(Benzyloxy)carbonyl]asparaginyl}amino)-2-hydroxy-4-phenylbutyl]prolyl-N1-(2-pyridin-3-ylethyl)isoleucinamide AIDS-043123 AIDS043123 Cbz-Asn-[Phe-CHOHCH2)-Pro]-Ile-2-EAP