ethyl 2-((R)-1-((S)-6-(((benzyloxy)carbonyl)amino)-2-((tert-butoxycarbonyl)amino)hexanamido)-2-phenylethyl)thiazole-4-carboxylate

ethyl 2-((R)-1-((S)-2-amino-6-(((benzyloxy)carbonyl)amino)hexanamido)-2-phenylethyl)thiazole-4-carboxylate