反应详情

To 10 mL of a chloroform solution containing 120 mg of (7-methoxy-4-methyl-2-oxoquinolin-1(2H)-yl)acetaldehyde and 165 mg of 1-(2,3-dihydro-1,4-benzodioxin-6-ylmethyl)piperidin-4-ylamine, 30 μL of acetic acid was added and stirred at room temperature for 1 hour. To the reaction mixture, 176 mg of sodium triacetoxyborohydride was added and stirred overnight. Aqueous saturated sodium hydrogen carbonate solution was added and the organic layer was separated. The organic layer was washed with aqueous saturated sodium chloride solution, dried over anhydrous magnesium sulfate, and the solvent was removed under reduced pressure. The residue thus obtained was purified by silica gel column chromatography [Silica Gel; Kanto Chemical Co., Inc., Silica Gel 60N, eluent; chloroform:methanol=5:1], to give 150 mg of 1-(2-(1-(2,3-dihydro-1,4-benzodioxin-6-ylmethyl)piperidin-4-ylamino)ethyl)-7-methoxy-4-methylquinolin-2(1H)-one.

1. additionwas added
2. stirringstirred overnight
3. customthe organic layer was separated
4. washThe organic layer was washed with aqueous saturated sodium chloride solution
5. dry with materialdried over anhydrous magnesium sulfate
6. customthe solvent was removed under reduced pressure
7. customThe residue thus obtained
8. customwas purified by silica gel column chromatography [Silica Gel; Kanto Chemical Co., Inc., Silica Gel 60N, eluent; chloroform:methanol=5:1]