| abstract |
An object of the present invention is to provide a DP receptor antagonist. The compound represented by the general formula (I), and a pharmaceutically acceptable salt thereof, have DP receptor antagonistic activity and have high safety, and are therefore useful as active ingredients for pharmaceuticals for DP receptor-mediated diseases. In addition, since the compound represented by the general formula (I), and a pharmaceutically acceptable salt thereof, also have good central migration properties, among DP receptor-mediated diseases, in particular, diseases involving DP receptors present in the center; That is, it is useful as a preventive and/or therapeutic agent for sleep arousal disorder. (wherein all symbols are as indicated in the specification) |