1-[4-(Thiazol-5-yl)-phenyl]-4(S)-hydroxy-2-N-(N-methoxycarbonyl-(L)-iso-leucyl)amino]-5(S)-N-(N-methoxycarbonyl-(L)-valyl)amino-6-phenyl-2-azahexane 198903-94-5 2,5,6,10,13-Pentaazatetradecanedioic acid, 8-hydroxy-12-(1-methylethyl)-3-(1-methylpropyl)-4,11-dioxo-9-(phenylmethyl)-6-[[4-(5-thiazolyl)phenyl]methyl]-, dimethyl ester, [3S-[3R*(R*),8R*,9R*,12R*]]- AIDS-057721 AIDS057721 Heterocyclic Azahexane deriv.