反应详情

In a similar manner to Step 2 of Example 6, 4-hydroxy-5-methoxy-7-[1-(tert-butoxycarbonyl)-5-formylindol-2-yl]isoindolinone (0.415 g, 0.985 mmol) was dissolved in acetonitrile (16.0 mL), and the solution was treated with diethylamine (2.04 mL, 19.7 mmol), acetic acid (1.10 mL, 19.7 mmol) and sodium triacetoxyborohydride (0.626 g, 2.96 mmol) to obtain 4-hydroxy-5-methoxy-7-[1-(tert-butoxycarbonyl)-5-(diethylaminomethyl)indol-2-yl]isoindolinone (0.202 g, 43%).