HRID1662947

反应详情

EQUATION

反应方程式

HRID 1662947 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

CONDITIONS

反应条件

温度
20 °C

PROCEDURE

实验过程

A suspension of 1.62 g (0.014 mol) of fumaric acid in 100 ml of ethyl acetate is brought to the boil. At this temperature, 100 ml of a toluene solution containing 10.77 g (0.028 mol) of pure quetiapine base is added, and the reaction mixture is allowed to boil for about 5 minutes. During this period a crystalline product starts to precipitate, which is then cooled to ca. 20° C. and is stirred at this temperature for 60 minutes. After being sucked off and dried, approximately 12.28 g (0.028 mol) of quetiapine hemifumarate is obtained, i.e. 99% of the theory, having the HPLC purity 99.76%, and melting point 175.7° C.

WORKUP

后处理

  1. additionis added
  2. waitDuring this period a crystalline product starts
  3. customto precipitate
  4. customdried