1-[4-(Thiazol-5-yl)-phenyl]-4(S)-hydroxy-2-N-(N-ethoxycarbonyl-(L)-valyl)amino]-5(S)-N-(N-methoxycarbonyl-(L)-valyl)amino-6-phenyl-2-azahexane 198903-93-4 2,5,6,10,13-Pentaazatetradecanedioic acid, 8-hydroxy-3,12-bis(1-methylethyl)-4,11-dioxo-9-(phenylmethyl)-6-[[4-(5-thiazolyl)phenyl]methyl]-, 1-ethyl 14-methyl ester, [3S-(3R*,8R*,9R*,12R*)]- AIDS-057720 AIDS057720 Heterocyclic Azahexane deriv.