反应详情

5-Chloro-7-nitro-3-phenyl-2-trimethylsilyl-1H-indole (1.5 g, 4.35 mmol) prepared in Step A was dissolved in tetrahydrofuran (30 mL), and tetrabutylammonium fluoride 1M solution (5.2 mL, 5.2 mmol) was added in drops thereto at 0° C. After completion of the reaction, the reaction mixture was diluted with water, extracted with ethyl acetate, washed with saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate, and filtered. The solvent was removed under reduced pressure, and the residue was purified by column chromatography to give the title compound (1.2 g, Yield 100%).

1. customat 0° C
2. customAfter completion of the reaction
3. extractionextracted with ethyl acetate
4. washwashed with saturated aqueous sodium chloride solution
5. dry with materialdried over anhydrous magnesium sulfate
6. filtrationfiltered
7. customThe solvent was removed under reduced pressure
8. customthe residue was purified by column chromatography