HRID706415
反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
PROCEDURE
实验过程
A suspension of Pemetrexed in EtOH containing 0% to 2% water (v/v) is heated to reflux and 1.85 eq of aq. NaOH (30% w/w) are added. The mixture is stirred at reflux until PXRD shows complete conversion. 0.15 eq of aq. NaOH (30% w/w) are added and stirring under reflux is continued for 2 h before the suspension is cooled to 20° C. to 30° C. Pemetrexed Disodium Form IV is isolated by filtration, washed with EtOH and dried in vacuo to constant weight.
WORKUP
后处理
- temperatureis heated
- temperatureto reflux
- temperatureat reflux until PXRD
- stirringstirring
- temperatureunder reflux
- temperatureis cooled to 20° C. to 30° C