An optically active thiazolidinone derivative having the general formula: ##STR1## wherein: R.sup.1 represents a hydrogen atom, a C.sub.1 -C.sub.4 alkyl group, a phenyl group, a substituted phenyl group (said substituent represents C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halogen), a phenyl-C.sub.1 -C.sub.2 alkyl group or a substituted phenyl-C.sub.3 -C.sub.2 alkyl group (the substituent of said phenyl represents C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halogen); R.sup.2 represents a C.sub.1 -C.sub.6 alkyl group; and n represents 1 or 2!. Effect The optically active thiazolidinone derivative of the present invention has excellent anti-angina pectoris action and is useful as a preventive agent or a therapeutic agent for angina pectoris.
具有以下通式的旋光
异噻唑烷衍
生物:##STR1## 其中:R.sup.1代表氢原子、C.sub.1-C.sub.4烷基、苯基、取代苯基(所述取代基代表C.sub.1-C.sub.4烷基、C.sub.1-C.sub.4烷氧基或卤素)、苯-C.sub.1-C.sub.2烷基或取代苯-C.sub.3-C.sub.2烷基(所述苯基的取代基代表C.sub.1-C.sub.4烷基、C.sub.1-C.sub.4烷氧基或卤素);R.sup.2代表C.sub.1-C.sub.6烷基;n代表1或2!。 作用 本发明的旋光
异噻唑烷衍
生物具有优异的抗心绞痛作用,并可用作心绞痛的预防剂或治疗剂。