| 摘要 |
There is provided a novel oxazolone derivative having inhibitory activity against casein kinase 1δand casein kinase 1ε. In addition, the present inhibitor inhibits casein kinase 1δand casein kinase 1ε, and thus there is also provided a pharmaceutical agent useful for the treatment and/or prevention of diseases, with the pathological conditions of which the activation mechanism of casein kinase 1δor casein kinase 1εis associated. There is further provided a pharmaceutical agent useful for the treatment of, particularly, circadian rhythm disorder (including sleep disorder), central neurodegenerative disease, and cancer. An inhibitor of casein kinase 1δand casein kinase 1εcomprising, as an active ingredient, an oxazolone derivative represented by the following general formula (1), a salt thereof, a solvate thereof, or a hydrate thereof: wherein X represents a halogen atom which is fluorine, chlorine, bromine or iodine. |
