HRID1649451

反应详情

EQUATION

反应方程式

HRID 1649451 的结构方程式

PROCEDURE

实验过程

8-(4-Methyl-1-piperazinyl)-9-fluoro-5-methyl-6,7-dihydro-1-oxo-1H,5H-benzo[ij]quinolizine-2-carboxylic acid was added to 48% hydrobromic acid and the solvent was removed by distillation under reduced pressure. Recrystallization of the residue from isopropanol-water (2:1 by volume) gave 8-(4-methyl-1-piperazinyl)-9-fluoro-5-methyl-6,7-dihydro-1-oxo-1H,5H-benzo[ij]quinolizine-2-carboxylic acid hydrobromide monohydrate as white rhombic crystals having a melting point of 298° to 299° C. (decomposed).

WORKUP

后处理

  1. customthe solvent was removed by distillation under reduced pressure
  2. customRecrystallization of the residue from isopropanol-water (2:1 by volume)