反应详情

To ethyl cis-1-benzyl-5-fluoro-6-(2-(1-methyl-1H-imidazole-4-sulfonamido)ethoxy)-2,3-dihydro-1H-inden-2-ylcarbamate (45.3 mg, 0.088 mmol) in tetrahydrofuran (1 ml) was added lithium aluminium hydride 1M in tetrahydrofuran (0.263 ml, 0.263 mmol) and the reaction mixture was refluxed for 2 h. Cooled down to room temperature and added a mixture of 0.5N potassium hydroxide (1 ml) and water (7 ml), filtered over Celite, washed with tetrahydrofuran and the Celite Filter cake was poured into tetrahydrofuran, refluxed for 30 min, and again filtered over Celite. The combined organic layers were evaporated, re-dissolved in dichloromethane, washed with sodium bicarbonate and brine, dried over magnesium sulfate, filtered and evaporated to obtain a pale yellow oil, that was purified by flash silica gel chromatography on 4 g SiO2-cartridge using 10% methanol in dichloromethane to obtain cis-N-(2-(3-benzyl-6-fluoro-2-(methylamino)-2,3-dihydro-1H-inden-5-yloxy)ethyl)-1-methyl-1H-imidazole-4-sulfonamide as a pale yellow oil. m=14.2 mg (35%)

1. temperaturethe reaction mixture was refluxed for 2 h
2. additionadded
3. filtrationfiltered over Celite
4. washwashed with tetrahydrofuran
5. filtrationthe Celite Filter cake
6. additionwas poured into tetrahydrofuran
7. temperaturerefluxed for 30 min
8. filtrationagain filtered over Celite
9. customThe combined organic layers were evaporated
10. dissolutionre-dissolved in dichloromethane
11. washwashed with sodium bicarbonate and brine
12. dry with materialdried over magnesium sulfate
13. filtrationfiltered
14. customevaporated
15. customto obtain a pale yellow oil, that
16. customwas purified by flash silica gel chromatography on 4 g SiO2-cartridge