A compound having the formula (I): ##STR1## is described, together with salts thereof and an enzymatic process for converting such compounds into clavulanic acid. A process for the preparation of the compound of formula (I) and its salts is disclosed, together with intermediates for use therein. This process involves the use of a novel enzyme system to effect the desired cyclization, which enzyme system is preferably derived from a micro-organism, in particular a species of Streptomyces.
描述了具有
化学式(I)的化合物:##STR1##,以及其盐和将这些化合物转化为
克拉霉素酸的酶法过程。公开了制备化合物(I)及其盐的方法,以及用于其中的中间体。该过程涉及使用一种新型酶系统来实现所需的环化作用,该酶系统最好来源于微
生物,特别是链霉菌的某个物种。