| abstract |
The purpose of the present invention is to provide a novel low molecular weight compound that exhibits orexin receptor agonist activity and is expected to be useful as an excellent preventative or therapeutic agent for narcolepsy or the like. The present invention provides a sulfonamide derivative represented by general formula (I) that has excellent orexin receptor agonist activity (wherein each symbol has the same definition as that described in the specification) and a pharmaceutically acceptable acid addition salt thereof, as well as an orexin receptor agonist comprising the derivative or the pharmaceutically acceptable acid addition salt thereof. |