| abstract |
A novel thiazolidine-2,4-dione derivative with hypoglycemic and aldose reductase inhibitory activities, represented by general formula (1), a salt thereof, a process for producing the same, and a pharmaceutical containing the same, wherein R?1 and R?2 may be the same or different from each other and each represents hydrogen, halogen, lower alkyl, hydroxy, lower alkoxy, nitro or amino which may be substituted by lower alkyl or lower alkanoyl; R?3 represents hydrogen or lower alkyl; A represents lower alkylene or carbonyl; and B and W are different from each other and each represents lower alkylene, carbonyl or a free bond. |