AIDS-057818 AIDS057818 Boc-Phe-.phi.[(S)-CH(OH)CH2NH]Phe-Gln-Phe-NH2 N-{(2S,3S)-3-[(tert-Butoxycarbonyl)amino]-2-hydroxy-4-phenylbutyl}-L-phenylalanyl-L-glutaminyl-L-phenylalaninamide