Methyl 8-(chloromethyl)-4-hydroxy-2-(trifluoromethyl)-3,6,7,8-tetrahydropyrrolo[3,2-e]indol-6-ium-1-carboxylate;chloride 、
5-<(naphthalen-2-ylcarbonyl)amino>-1H-indole-2-carboxylic acid 在
盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
生成 dl-methyl 4-chloromethyl-8-hydroxy-6-<5-<(naphthalen-2-ylcarbonyl)amino>-1H-indol-2-ylcarbonyl>-2-trifluoromethyl-1,4,5,6-tetrahydropyrrolo<3,2-e>indole-3-carboxylate