HRID1658009

反应详情

EQUATION

反应方程式

HRID 1658009 的结构方程式

PROCEDURE

实验过程

Following the procedures described in Example 40 p-methoxybenzyl 5-methoxymethyl-6H-1,3-thiazine-4-carboxylate, 2,2,2-trichloroethyl 5-methyl-6H-1,3-thiazine-4-carboxylate or methoxymethyl 5-isobutyryloxymethyl-6H-1,3-thiazine-4-carboxylate are reacted with 2-azido-2-methoxyacetyl chloride to obtain p-methoxybenzyl dl-3-methoxymethyl-7β-azido-7α-methoxy-3-cephem-4-carboxylate, 2,2,2-trichloroethyl d1-3-methyl-7β-azido-7α-methoxy-3-cephem-4-carboxylate and methoxymethyl dl-3-isobutyryloxymethyl-7β-azido-7α-methoxy-3-cephem-4-carboxylate, respectively.