Synonyms: Pyrrolo[2,3-b]indole-2-carboxylic acid, 1-[(2S)-2-[[(1,1-dimethylethoxy)carbonyl]amino]-1-oxopropyl]-3a-[3-[(2S)-2-[[[(2S)-1-[(1,1-dimethylethoxy)carbonyl]-2-pyrrolidinyl]carbonyl]amino]-3-ethoxy-3-oxopropyl]-1H-indol-6-yl]-1,2,3,3a,8,8a-hexahydro-, ethyl ester, (2S,3aS,8aR)-