| abstract |
To provide a pyrrolidine, a thiazolidine derivative, a production method thereof, and a therapeutic agent for diabetes. The following formula (1) (In the formula, ◆ X 1 represents an atom or group selected from a carbon atom, O, S (O) q 1 and NR 5 , m 1 m 2 represents 0 or an integer of 1 to 4, ◆ n 1 And n 2 represents an integer of 1 to 3, ◆ R 1 represents a hydrogen atom or a substituted alkyl group, ◆ R 2 represents a hydrogen atom or an alkyl group, and ◆ Ak represents represents an alkylene chain, R 3, a compound represented by a hydrogen atom or a cyano group), when optical isomers are present, their optical isomers, and those with a pharmaceutically acceptable acid Addition salt, production method thereof, and therapeutic agent for type II diabetes. [Selection figure] None |