HRID1414857

反应详情

EQUATION

反应方程式

HRID 1414857 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

19.7 g of amphotericin B with a specific biological activity of 750 mcg/mg (ED/mg) and 14.7 g of meglumine with the content of 1-deoxy-1-(methylamino)-glucitol of at least 99% are dissolved in 100 ml of dimethylsulphoxide at a temperature within the range of from 50° to 60° C and stirred for 10 minutes. The resulting solution is added with a 7-fold volume of a mixture of acetone with diethyl ether (in a volumetric ratio of 1:1). The precipitate is filtered off, washed with the same mixture of acetone with diethyl ether, and dried at 20° C under a residual pressure of 100 mm Hg to give 32.7 g of amphoglucamine with a specific biological activity of 440 mcg/mg (ED/mg) which corresponds to the yield of 96% of amphoglucamine based on the activity of the starting amphotericin B.

WORKUP

后处理

  1. filtrationThe precipitate is filtered off
  2. washwashed with the same mixture of acetone with diethyl ether
  3. customdried at 20° C under a residual pressure of 100 mm Hg