AIDS-057819 AIDS057819 Boc-Phe[CH(OH)CH2NH]Phe-Gln-Phe-NH2 N-{(2R,3S)-3-[(tert-Butoxycarbonyl)amino]-2-hydroxy-4-phenylbutyl}-L-phenylalanyl-L-glutaminyl-L-phenylalaninamide