| abstract |
An object of the present invention is to provide a novel low molecular weight compound exhibiting orexin agonist activity expected to be useful as an excellent narcolepsy treatment or prevention agent. The present invention relates to general formula (I) having excellent orexinergic activity. [Each symbol in the formula is as described in the specification. ] And a pharmaceutically acceptable acid addition salt thereof, and an orexin agonist containing the compound or a pharmaceutically acceptable acid addition salt thereof. |