6-Hydroxy nitrogen-containing 6-membered ring compounds of the following general formula (II):
wherein R1 represents carboxy group, carbamoyl group, cyano group, formyl group, C1- C5 hydroxyalkyl group, C2 - C6 alkoxycarbonyl group, carboxyvinyl group, carboxymethyl group or oxime group, R2 represents hydrogen atom or carboxy group, and A represents carbon atom or nitrogen atom, can be prepared by reacting a nitrogen-containing 6-membered ring compounds of the following general formula (I):
wherein R1, R2 and A are as defined in the general formula (II) above, with a microorganism or physico-chemically treated microorganism in an aqueous medium. Efficiency of the above reaction can be raised by conducting the reaction in the presence of phenazine methosulfate.
以下通式(II)的 6-羟基含氮 6 元环化合物:
其中 R1 代表羧基、
氨基甲酰基、
氰基、甲酰基、C1-C5 羟基烷基、C2-C6 烷氧基羰基、羧基
乙烯基、羧甲基或
肟基,R2 代表氢原子或羧基,A 代表碳原子或氮原子,可通过使以下通式(I)的含氮 6 元环化合物反应制备:
其中 R1、R2 和 A 如上述通式(II)所定义,与微
生物或经物理
化学处理的微
生物在
水介质中反应。在
酚嗪甲
硫酸盐存在下进行反应,可提高上述反应的效率。