HRID353379

反应详情

EQUATION

反应方程式

HRID 353379 的结构方程式

PROCEDURE

实验过程

The transformation is detailed in the case of pravastatin dibenzylamine salt. The recrystallized dibenzylamine salt is suspended in an isobutyl acetate-water mixture, then equivalent quantity of sodium hydroxide is added in aqueous solution to the suspension by maintaining under stirring the pH in the range of 8.0-8.5. After disappearance of the suspension the phases are separated and the pravastatin-containing aqueous solution is washed twice with isobutyl acetate. The aqueous solution is clarified with activated carbon and lyophilized yielding pravastatin in a pharmaceutically acceptable quality.

WORKUP

后处理

  1. temperatureby maintaining
  2. customAfter disappearance of the suspension the phases are separated
  3. additionthe pravastatin-containing aqueous solution
  4. washis washed twice with isobutyl acetate