반응 #5258

반응 방정식

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

용매

dimethylformamide

반응 조건

후처리

1. 1
   여과filtered
2. 2
   세척The product was rinsed with ethanol

실험 절차

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.

출처