反应详情

A solution of 4-(1-(tert-butoxycarbonyl)piperidin-4-yl)-butanoic acid (291 mg, 1.07 mmol, from Step A), N,O-dimethylhydroxylamine hydrochloride (177 mg, 1.82 mmol), EDC (350 mg, 1.82 mmol), and triethylamine, 0.25 mL, 1.82 mmol) were stirred together in 5 mL CH2Cl2 for 16 h. The mixture was diluted with 100 mL CH2Cl2 and washed with 1M HCl. The organic layer was dried over MgSO4 and concentrated. Flash chromatography (1/1 hexane/EtOAc) afforded 237 mg (71%) of the title compound.

1. washwashed with 1M HCl
2. dry with materialThe organic layer was dried over MgSO4
3. concentrationconcentrated