| abstract |
(57) [Summary] [Structure] A benzothiophene derivative represented by the following formula [I] or a pharmaceutically acceptable acid addition salt thereof. Embedded image (In the formula, R 1 represents a halogen atom, R 2 represents a hydrogen atom or a lower alkyl group, and R 3 represents a hydrogen atom, a halogen atom, a lower alkyl group or a lower alkoxy group.) Since the compound of the present invention has β 3 adrenergic receptor stimulating action, it is useful as a preventive and therapeutic agent for obesity, diabetes, irritable bowel syndrome, acute or chronic diarrhea and the like. |