HRID353379
反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
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
- temperatureby maintaining
- customAfter disappearance of the suspension the phases are separated
- additionthe pravastatin-containing aqueous solution
- washis washed twice with isobutyl acetate