3-Acyloxymethylceph-3-em-4-carboxylic acids, for example cephalosporin C, are enzymically deacylated to their 3-hydroxymethyl analogues by means of esterases produced by culturing microorganisms or mutants thereof of the class Basidiomycetes, particularly of the genus Rhodosporidium, for example a microorganism of the species Rhodosporidium toruloides.
例如
头孢菌素C等3-酰氧甲基头孢-3-酮-4-
羧酸可以通过培养类担子菌类(Basidiomycetes)的微
生物或其突变体产生的
酯酶,特别是属于红孢酵母属(Rhodosporidium)的微
生物,例如红孢酵母属(Rhodosporidium toruloides)的微
生物,进行酯化作用,使其脱酰基,形成相应的3-羟甲基类似物。