methyl (8S)-8-(chloromethyl)-4-hydroxy-2-(trifluoromethyl)-3,6,7,8-tetrahydropyrrolo[3,2-e]indol-6-ium-1-carboxylate;chloride 、
3,3'-(2,3-ethylenedioxy-1,4-phenylene)bisacrylic 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,
以15%的产率得到3,3'-[(2,3-Dihydro-1,4-benzodioxin-5,8-diyl)bis(1-oxo-2-propene-3,1-diyl)]bis[1,2,3,6-tetrahydro-1alpha-(chloromethyl)-5-hydroxy-7-(trifluoromethyl)benzo[1,2-b:4,3-b']dipyrrole-8-carboxylic acid methyl] ester