tert-butyl 4-((6-hydroxy-3-oxo-2,3-dihydrobenzofuran-7-yl)methyl)piperazine-1-carboxylate 、
6-phenyl-1H-pyrrolo[2,3-b]pyridine-3-carboxaldehyde 在
哌啶 silica gel 、
chloroform methanol 作用下,
以
甲醇 为溶剂,
反应 16.0h,
以to obtain tert-butyl (Z)-4-({6-hydroxy-3-oxo-2-[(6-phenyl-1H-pyrrolo[2,3-b]pyridin-3-yl)methylene]-2,3-dihydrobenzofuran-7-yl}methyl)piperazine-1-carboxylate (0.019 g, 46%)的产率得到tert-butyl (Z)-4-({6-hydroxy-3-oxo-2-[(6-phenyl-1H-pyrrolo[2,3-b]pyridin-3-yl)methylene]-2,3-dihydrobenzofuran-7-yl}methyl)piperazine-1-carboxylate