反应详情

To 2 mL of dichloromethane solution containing 60 mg of (7-cyclopropoxy-4-methyl-2-oxo-1,2-dihydroquinolin-1-yl)acetaldehyde, 81 mg of tert-butyl (2,3-dihydro-1,4-benzodioxin-6-ylmethyl)(piperidin-4-yl)carbamate and 20 μL of acetic acid were added, and stirred for 15 min. To the reaction mixture, 74 mg of sodium triacetoxyborohydride was added, and stirred for 40 min. Chloroform and aqueous saturated sodium hydrogen carbonate solution were added, the organic layer was separated, washed sequentially with water and 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 [eluent; hexane:ethyl acetate=1:4], to give 0.10 g of tert-butyl (1-(2-(7-cyclopropoxy-4-methyl-2-oxo-1,2-dihydroquinolin-1-yl)ethyl)piperidin-4-yl)(2,3-dihydro-1,4-benzodioxin-6-ylmethyl)carbamate as a colorless oil.

1. additionwere added
2. stirringstirred for 40 min
3. customthe organic layer was separated
4. washwashed sequentially with water and 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 [eluent; hexane:ethyl acetate=1:4]