PROBLEM TO BE SOLVED: To provide 2-position unsubstituted pyrimidinone derivatives having excellent autotaxin inhibitory activity.SOLUTION: The present invention provides a compound represented by formula (I) or a pharmaceutically acceptable salt thereof. As a concrete example, a compound represented by formula 6 in the following reaction formula is cited.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】優れたオートタキシン阻害活性を有する2位非置換ピリミジノン誘導体の提供。【解決手段】式(I)で示される化合物またはその製薬上許容される塩:具体例として、下記の反応式の式6で表される化合物が挙げられる。【選択図】なし
