1-((2S,3S)-3-{[N2-(tert-Butoxycarbonyl)-L-asparaginyl]amino}-2-hydroxy-4-phenylbutanoyl)-L-prolyl-N1-(cyclohexylmethyl)-L-alloisoleucinamide AIDS-163648 AIDS163648 Boc-Asn-(2S, 3S)-AHPBA-Pro-Ile-NH-CH2-C6H11