There is provided an inhibitor that inhibits casein kinase 1δ and casein kinase 1ε, and thus, there is also provided a pharmaceutical agent useful for the treatment and/or prevention of a disease, with the pathological condition of which the mechanism of activation of casein kinase 1δ or casein kinase 1ε is associated. Particularly, the above-described inhibitor is used to provide a pharmaceutical agent useful for the treatment of circadian rhythm disorder (including sleep disorder), central neurodegenerative disease, and cancer.
An inhibitor of casein kinase 1δ and casein kinase 1ε, which comprises, 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, in the formula (1), each of R1 and R2 independently represents any one of a substituted or unsubstituted 6-membered or 5-membered heterocyclic group optionally having a condensed ring, a substituted or unsubstituted aromatic hydrocarbon group optionally having a condensed ring, and a substituted or unsubstituted aromatic hydrocarbon lower alkyl group or aromatic hydrocarbon lower alkenyl group optionally having a condensed ring.]
本发明提供了一种抑制
酪蛋白激酶1δ和
酪蛋白激酶1ε的
抑制剂,因此还提供了一种用于治疗和/或预防疾病的药剂,该疾病的病理条件与
酪蛋白激酶1δ或
酪蛋白激酶1ε的激活机制有关。特别是,上述
抑制剂可用于提供治疗昼夜节律紊乱(包括睡眠障碍)、中枢神经退行性疾病和癌症的药物制剂。
一种
酪蛋白激酶1δ和
酪蛋白激酶1ε的
抑制剂,其活性成分包括由下通式(1)代表的
噁唑酮衍
生物、其盐、其溶液或其
水合物:
[其中,在式 (1) 中,R1 和 R2 各自独立地代表任选具有缩合环的取代或未取代的 6 元或 5 元杂环基团、任选具有缩合环的取代或未取代的
芳香烃基团和任选具有缩合环的取代或未取代的
芳香烃低级烷基或
芳香烃低级烯基中的任一种。]