反应详情

温度

65 °C

A 1N sodium hydroxide aqueous solution (15 ml) was added to a solution of tetrahydrofuran (30 ml) and methanol (30 ml) containing methyl 6-(cis-2-(tert-butoxycarbonylamino)cyclohexylamino)-2-chloro-5-fluoronicotinate (3.00 g), followed by stirring at 65° C. for 2 hours. The reaction mixture was cooled to room temperature, the solvent was distilled away under reduced pressure, and a saturated aqueous ammonium chloride solution, tetrahydrofuran, and ethyl acetate were added. The organic layer was collected, washed with saturated saline, and dried over anhydrous magnesium sulfate, and the solvent was distilled away under reduced pressure. Colorless oily matter of 6-(cis-2-(tert-butoxycarbonylamino)cyclohexylamino)-2-chloro-5-fluoronicotinic acid (3.00 g) was thus obtained.

1. temperatureThe reaction mixture was cooled to room temperature
2. distillationthe solvent was distilled away under reduced pressure
3. additiona saturated aqueous ammonium chloride solution, tetrahydrofuran, and ethyl acetate were added
4. customThe organic layer was collected
5. washwashed with saturated saline
6. dry with materialdried over anhydrous magnesium sulfate
7. distillationthe solvent was distilled away under reduced pressure