4-(3-bromo-phenyl)-1,3-dihydro-indol-2-one 、
5-formyl-4-methyl-1H-pyrrole-2-carboxylic acid (2-diethylamino-ethyl)-amide 在
哌啶 silica gel 、
methanol-dichloromethane 作用下,
以
乙醇 为溶剂,
反应 72.0h,
以to provide pure product 5-[4-(3-bromo-phenyl)-2-oxo-1,2-dihydro-indol-3-ylidenemethyl]-4-methyl-1H-pyrrole-2-carboxylic acid (2-diethylamino-ethyl)amide as a yellow solid (45 mg, 35%)的产率得到5-[4-(3-bromo-phenyl)-2-oxo-1,2-dihydro-indol-3-ylidenemethyl]-4-methyl-1 H-pyrrole-2-carboxylic acid (2-diethylamino-ethyl)-amide