dimethyl (-)-(2S,2'S,3aS,3'aS,8aS,8'aS)-1,1'-bis{(S)-2-[tert-butoxycarbonyl(methyl)amino]-3-phenylpropanoyl}-2,2',3,3',8,8a,8',8'a-octahydro-1H,1'H-3a,3'a-bipyrrolo[2,3-b]indole-2,2-dicarboxylate

Boc-Phe-Trp(Nin-Boc)-OMe

(2S,3aR,8aR)-3a-bromo-1,8-bis(tert-butoxycarbonyl)-1,2,3,3a,8,8a-hexahydropyrrolo[2,3-b]indole-2-carboxylic acid

exo-allyl 3a-bromo-1,8-di-tert-butyloxycarbonyl-1,2,3,3a,8,8a-hexahydropyrrolo[2,3-b]indole-2-carboxylate