A COMPOUND HAVING A HYPOGLYCEMIC EFFECT IS PROVIDED. THE COMPOUND AND A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF ARE USEFUL FOR THE TREATMENT OR PREVENTION OF DIABETES, OBESITY, AND THE LIKE. THE COMPOUND IS REPRESENTED BY THE GENERAL FORMULA (1): (WHEREIN R1 AND R2 ARE EACH INDEPENDENTLY A HYDROGEN ATOM, A HALOGEN ATOM, AN AMINO GROUP, A HYDROXYL GROUP, A HYDROXYAMINO GROUP, A NITRO GROUP, A CYANO GROUP, A SULFAMOYL GROUP, A C1 TO C6 ALKYL GROUP, A C1 TO C6 ALKOXY GROUP, A C1 TO C6 ALKYLSULFONYL GROUP, A C1 TO C6 ALKYLSULFINYL GROUP, A C1 TO C6 ALKYLSULFONYL GROUP, OR A C1 TO C6 ALKOXY- C1 TO C6 ALKYLSULFONYL GROUP, AND A IS A SUBSTITUTED OR UNSUBSTITUTED HETEROARYL GROUP).
