(2RS,3S)-3-[(N-Benzyloxycarbonyl)-L-asparaginyl]amino]-2-hydroxy-4-phenyl-1-(N-(L-prolyl-L-isoleucinyl-L-phenylalanine methyl ester))butane AIDS-043117 AIDS043117 Cbz-Asn-Phe-psi-[(RS)-CHOHCH2)-Pro]-Ile-Phe-OMe