Sodium Bicarbonate → HCID 59398189, compound

Participants

Reaction Steps

To 20 mL of a chloroform solution containing 0.71 g of (4-chloro-7-fluoro-2-oxoquinolin-1(2H)-yl)acetaldehyde, 1.03 g of tert-butyl (2,3-dihydro-1,4-benzodioxin-6-ylmethyl)(piperidin-4-yl)carbamate and 0.18 g of acetic acid were added, and stirred at room temperature for 1 hour. To the reaction mixture, 0.99 g of sodium triacetoxyborohydride was added, and stirred for 1 hour. 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; ethyl acetate:hexane=4:1], to give 0.76 g of tert-butyl (2,3-dihydro-1,4-benzodioxin-6-ylmethyl)(1-(2-(4-chloro-7-fluoro-2-oxoquinolin-1(2H)-yl)ethyl)piperidin-4-yl)carbamate as a yellow oil.

Provenance & Evidence