反应详情

In a similar manner to Step 2 of Example 6, 4-ethyl-7-[1-(tert-butoxycarbonyl)-5-formylindol-2-yl]isoindolinone (68.0 mg, 0.168 mmol) was dissolved in acetonitrile (5.4 mL), and the solution was treated with ethanolamine (0.041 mL, 0.67 mmol), acetic acid (0.192 mL, 3.36 mmol) and sodium triacetoxyborohydride (71.0 mg, 0.336 mmol). The reaction mixture was added with 1 mol/L hydrochloric acid and extracted with ethyl acetate. The organic layer was washed with sodium carbonate and saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure to obtain 4-ethyl-7-{1-(tert-butoxycarbonyl)-5-[(2-hydroxyethylamino)methyl]indol-2-yl}isoindolinone (72.0 mg, yield 95%).

1. extractionextracted with ethyl acetate
2. washThe organic layer was washed with sodium carbonate and saturated brine
3. dry with materialdried over anhydrous sodium sulfate
4. customThe solvent was evaporated under reduced pressure