反应详情

A mixture of (1-benzhydrylpiperidin-4-yl)methanol (370 mg, 1.3 mmol), tert-butyl 5-chloro-2,4-difluorobenzoate (328 mg, 1.3 mmol) and potassium tert-butanolate (295 mg, 2.6 mmol) in DMSO (4 mL) was stirred at room temperature for 16 h. The reaction mixture was quenched by water (50 mL) and extracted with ethyl acetate (10 mL×4). The combined organic layers were washed with brine (20 mL), dried over anhydrous sodium sulfate, filtered and concentrated. The residue was washed with ethyl acetate (5 mL) and filtered to afford 4-((1-benzhydrylpiperidin-4-yl)methoxy)-5-chloro-2-fluorobenzoic acid (480 mg, 82%) as a white solid. LCMS (ESI) m/z: 454.2 [M+H]+.

1. customThe reaction mixture was quenched by water (50 mL)
2. extractionextracted with ethyl acetate (10 mL×4)
3. washThe combined organic layers were washed with brine (20 mL)
4. dry with materialdried over anhydrous sodium sulfate
5. filtrationfiltered
6. concentrationconcentrated
7. washThe residue was washed with ethyl acetate (5 mL)
8. filtrationfiltered