反应详情

温度

45 °C

To a solution of Intermediate 3 (250 mg, 0.81 mmol) in N,N-dimethylformamide (3 mL) was added 2-chloromethyl-6-fluoro-pyridine from Step A (118 mg, 0.81 mmol), potassium carbonate (224 mg, 1.62 mmol) and 18-crown-6 (40 mg). The slurry was heated at 45° C. for eighteen hours. After cooling the reaction was partitioned between ethyl acetate and water. The organic layer was washed with water and brine and dried over magnesium sulfate. The slurry was filtered and concentrated in vacuo. The crude material was purified using normal phase chromatography (ethyl acetate/heptane) to provide the alkylated product as a white solid. (180 mg, 53% yield). MS (M+H): 418

1. temperatureAfter cooling the reaction
2. customwas partitioned between ethyl acetate and water
3. washThe organic layer was washed with water and brine
4. dry with materialdried over magnesium sulfate
5. filtrationThe slurry was filtered
6. concentrationconcentrated in vacuo
7. customThe crude material was purified