反应详情

温度

60 °C

A solution of 5-(2-morpholinoethoxy)-1H-indazole-3-carboxaldehyde (0.0163 g, 0.0592 mmol) in methanol (0.5 mL) was added with tert-butyl 4-[(6-methoxy-3-oxo-2,3-dihydrobenzofuran-7-yl)methyl]piperazine-1-carboxylate (0.0172 g, 0.0493 mmol) and piperidine (0.00335 g, 0.0394 mmol), and the mixture was stirred at 60° C. for 3 hours. The reaction mixture was concentrated, and the resulting residue was purified by silica gel column chromatography (chloroform/methanol) to obtain tert-butyl (Z)-4-[(6-methoxy-2-{[5-(2-morpholinoethoxy)-1H-indazol-3-yl]methylene}-3-oxo-2,3-dihydrobenzofuran-7-yl)methyl]piperazine-1-carboxylate (0.0303 g, 99%).

1. concentrationThe reaction mixture was concentrated
2. customthe resulting residue was purified by silica gel column chromatography (chloroform/methanol)