反应详情

To a solution of (2S,4R)-1-(4-methoxybenzoyl)-2-methyl-N-pyridin-4-yl-1,2,3,4-tetrahydroquinolin-4-amine (90 mg, 0.24 mmol, 1 equ.) in methylene chloride (0.8 mL) was added diisopropylethylamine (84 uL, 0.48 mmol, 2 equ.) followed by acetyl chloride (340 uL, 4.80 mmol, 20 equ.). The mixture was stirred at room temperature for 2 h. The mixture was concentrated under reduced pressure, dissolved in ethyl acetate, washed with sat. aqueous sodium bicarbonate, brine and dried over magnesium sulfate, filtered, and concentrated under reduced pressure. The residue was purified by silica gel chromatography (methylene chloride/methanol 97/3) to afford pure N-[(2S,4R)-1-(4-methoxybenzoyl)-2-methyl-1,2,3,4-tetrahydroquinolin-4-yl]-N-pyridin-4-ylacetamide (60 mg, 61%).

1. concentrationThe mixture was concentrated under reduced pressure
2. dissolutiondissolved in ethyl acetate
3. washwashed with sat. aqueous sodium bicarbonate, brine
4. dry with materialdried over magnesium sulfate
5. filtrationfiltered
6. concentrationconcentrated under reduced pressure
7. customThe residue was purified by silica gel chromatography (methylene chloride/methanol 97/3)