A process for producing an optically active form of a compound of formula (I) ##STR1## wherein R.sub.1 represents hydrogen or a hydrocarbon group that may be substituted; R.sub.2 and R.sub.3 independently represent hydrogen, a hydrocarbon group that may be substituted, or a heteroaromatic group that may be substituted; X' represents a substituent comprising an esterified carboxyl group or an acylated hydroxyl group; ring A represents a benzene ring that may be substituted or a heteroaromatic ring that may be substituted; ring J' represents a 7- or 8-membered heterocyclic ring containing at most 3 hetero-atoms as ring-constituent members, which may have a further substituent or substituents in addition to R.sub.1, R.sub.2, R.sub.3 and X', and C* denotes a chiral carbon atom or a salt thereof, which comprises subjecting the racemic compound of the formula (I) or a salt thereof, or alternatively a racemic starting compound for synthesizing the compound of the formula (I) to enzymatically enantioselective hydrolysis to provide an optically active form thereof.
一种生产公式(I)化合物的光学活性形式的方法,其中R1代表氢或可被取代的碳氢基团;R2和R3独立地代表氢、可被取代的碳氢基团或可被取代的杂环芳基团;X'代表一个含有酯化羧基或酰化羟基的取代基;环A代表一个可被取代的苯环或可被取代的杂环芳基;环J'代表一个最多含有3个杂原子作为环构成成员的7-或8元杂环,除了R1、R2、R3和X'之外,它们还可以有进一步的取代基或取代基,并且C*表示一个手性碳原子或其盐,该方法包括将公式(I)的外消旋化合物或其盐,或者合成公式(I)化合物的外消旋起始化合物,经过酶催化选择性
水解以提供其光学活性形式。