反应详情

温度

80 °C

To a solution of (R)-tert-butyl 2-((2-cyanopyridin-3-yloxy)methyl)pyrrolidine-1-carboxylate (3.62 g, 11.9 mmol, EXAMPLE 1 Step 1) in tert-butanol (110 mL) was added potassium hydroxide pellet (10.0 g, 179 mmol) at room temperature. The resulting mixture was stirred at 80° C. for 0.5 h. After cooling to room temperature, the mixture was poured into water, and the aqueous layer was extracted with ethyl acetate twice. The combined organic layers were washed with brine, dried over magnesium sulfate, and concentrated in vacuo. The residual oil was purified by silica gel column chromatography (dichloromethane to methanol/dichloromethane 1:15) to give 3.43 g (90%) of the title compound as a white amorphous powder.

1. temperatureAfter cooling to room temperature
2. extractionthe aqueous layer was extracted with ethyl acetate twice
3. washThe combined organic layers were washed with brine
4. dry with materialdried over magnesium sulfate
5. concentrationconcentrated in vacuo
6. customThe residual oil was purified by silica gel column chromatography (dichloromethane to methanol/dichloromethane 1:15)