反应详情

A mixture of 4-(1-(tetrahydro-2H-pyran-4-yloxy)ethyl)benzoic acid (326 mg, 1.3 mmol), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (380 mg, 1.98 mmol), N-hydroxybenzotriazole (267.3 mg, 1.98 mmol) and triethylamine (400 mg, 3.96 mmol) in dichloromethane (50 mL) was stirred for 30 minutes at room temperature. Then to the mixture, 3-(aminomethyl)-4,6-dimethylpyridin-2-ol (200.64 mg, 1.32 mmol) was added. The resultant mixture was stirred at room temperature for 12 hours. Then the mixture was washed with water (30 mL×3). The organic layer was concentrated to give a residue and the residue was purified by column chromatography (silica gel, dichloromethane/methanol=20:1) to give N-((2-hydroxy-4,6-dimethylpyridin-3-yl)methyl)-4-(1-(m-tolyloxy)ethyl)benzamide (411 mg, 82%). LRMS (M+H+) m/z: calcd 384.2. found 384.

1. washThen the mixture was washed with water (30 mL×3)
2. concentrationThe organic layer was concentrated
3. customto give a residue
4. customthe residue was purified by column chromatography (silica gel, dichloromethane/methanol=20:1)