反応 #5258

反応方程式

sodium acetate

ethanol

3-methylthiomethyl-7-[2-(2-amino-4-thiazolyl)-2-hydroxyimino-acetamido]-ceph-3-eme-4-carboxylic acid

→

sodium 3-methylthiomethyl-7-[2-(2-amino-4-thiazolyl)-2-hydroxyimino-acetamido]-ceph-3-eme-4-carboxylate

溶媒

dimethylformamide

反応条件

後処理

1. 1
   ろ過filtered
2. 2
   洗浄The product was rinsed with ethanol

実験手順

3.5 ml of a methanolic solution of sodium acetate and 30 ml of ethanol were added to a solution of 1 g of the syn isomer of 3-methylthiomethyl-7-[2-(2-amino-4-thiazolyl)-2-hydroxyimino-acetamido]-ceph-3-eme-4-carboxylic acid in 2 ml of dimethylformamide and the mixture was vacuum filtered. The product was rinsed with ethanol and then with ether to obtain 0.804 g of syn isomer of sodium 3-methylthiomethyl-7-[2-(2-amino-4-thiazolyl)-2-hydroxyimino-acetamido]-ceph-3-eme-4-carboxylate.

出典