methyl 6-trifluoromethyl-2-[5-[(4,5,6-trimethoxy1H-indol-2-ylcarbonyl)amino]-1H-indol-2-ylcarbonyl]-1,2,8,8a-tetrahydrocyclopropa[c]pyrrolo[3,2-e]indol-4 (5H)-one-7-carboxylate 以4.2 mg (99%)的产率得到methyl 1-bromomethyl-5-hydroxy-7-trifluoromethyl-3-[5-[(4,5,6-trimethoxy1H-indol-2-ylcarbonyl)amino]-1H-indol-2-ylcarbonyl]-1,2,3,6-tetrahydropyrrolo[3,2-e]indole-8-carboxylate