HRID1614062

反应详情

EQUATION

反应方程式

HRID 1614062 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

To a solution of benzhydryl 7β-tert-butoxycarbonylamino-3-(2-methyl-1-pyrazolio)methyl-3-cephem-4-carboxylate 1-oxide iodide (20 g) and N,N-dimethylformamide (100 ml) was stirred at -35° C. Phosphorus trichloride (7.8 g) was added thereto and stirred for 10 minutes at the same temperature. The reaction mixture was added to water (600 ml). The precipitates were collected by filtration and washed with water to give benzhydryl 7β-tert-butoxycarbonylamino-3-(2-methyl-1-pyrazolio)methyl-3-cephem-4-carboxylate iodide (15.4 g).

WORKUP

后处理

  1. filtrationThe precipitates were collected by filtration
  2. washwashed with water