反应详情

To 1 mL of a methanol solution containing 0.20 g of methyl 1-(2-(4-((2,3-dihydro-1,4-benzodioxin-6-ylmethyl)amino)piperidin-1-yl)ethyl)-7-methoxy-2-oxo-1,2-dihydroquinoline-3-carboxylate, 0.5 mL of 20% aqueous sodium hydroxide solution was added and stirred for 1 hour. 3 mL of water was added, removed methanol under reduced pressure, adjusted to pH 6.0 with 6 mol/L hydrochloric acid, and the resulting solid was filtered to afford 0.15 g of 1-(2-(4-((2,3-dihydro-1,4-benzodioxin-6-ylmethyl)amino)piperidin-1-yl)ethyl)-7-methoxy-2-oxo-1,2-dihydroquinoline-3-carboxylic acid as a white solid.

1. additionwas added
2. customremoved methanol under reduced pressure
3. filtrationthe resulting solid was filtered