反应详情

Methyl 5-((1-(tert-butoxycarbonyl)piperidin-4-yl)methyl)picolinate (200 mg, 0.60 mmol) was stirred at rt in THF/MeOH (1:1, v/v). 3N NaOH (0.2 mL, 0.60 mmol) was added and the resulting mixture was stirred at rt for 5 h. TLC indicated the reaction was complete. Most of the volatile solvent was evaporated under reduced pressure. The residue was acidified with 3N aq. HCl to pH˜5, and extracted with DCM (2×20 mL). The combined organic layers were dried over Na2SO4, filtered, and concentrated under reduced pressure to give 5-((1-(tert-butoxycarbonyl)piperidin-4-yl)methyl)picolinic acid as a white semi-solid (200 mg, quantitative).

1. customMost of the volatile solvent was evaporated under reduced pressure
2. extractionextracted with DCM (2×20 mL)
3. dry with materialThe combined organic layers were dried over Na2SO4
4. filtrationfiltered
5. concentrationconcentrated under reduced pressure