methyl (8S)-8-(bromomethyl)-4-hydroxy-2-methyl-3,6,7,8-tetrahydropyrrolo[3,2-e]indole-1-carboxylate 、
5-(2-dimethylamino-ethoxy)-benzofuran-2-carboxylic acid HBr salt 在
PS-carbodiimide 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 24.0h,
以82%的产率得到methyl (8S)-8-(bromomethyl)-6-[5-[2-(dimethylamino)ethoxy]-1-benzofuran-2-carbonyl]-4-hydroxy-2-methyl-7,8-dihydro-3H-pyrrolo[3,2-e]indole-1-carboxylate