Dichloromethane → HCID 59397874, compound

Participants

Reaction Steps

To 1.7 mL of a dichloromethane solution containing 0.10 g of 1-(2-(4-((tert-butoxycarbonyl)(2,3-dihydro-1,4-benzodioxin-6-ylmethyl)amino)piperidin-1-yl)ethyl)-4-methyl-2-oxo-1,2-dihydroquinoline-7-carboxylic acid, 89 μL of triethylamine, 51 mg of dimethylamine hydrochloride and 0.12 g of O-(7-azabenzotriazol-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate were added at room temperature, and stirred at the same temperature for 1 hour. Water and ethyl acetate were added to the reaction mixture. The organic layer was separated, 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 basic silica gel column chromatography [eluent; chloroform:methanol=100:1], to give 93 mg of tert-butyl (2,3-dihydro-1,4-benzodioxin-6-ylmethyl)(1-(2-(7-((dimethylamino)carbonyl)-4-methyl-2-oxoquinolin-1(2H)-yl)ethyl)piperidin-4-yl)carbamate as a white solid.

Provenance & Evidence