PROBLEM TO BE SOLVED: To provide a compound which has excellent undesirable cell proliferation inhibitory action, particularly an antitumor action and is useful as a prophylactic agent or a treating agent for cancer as an antitumor agent, an antirheumatic agent or the like.SOLUTION: The compound for the prophylaxis or treatment of diseases caused by undesirable cell proliferation is represented by the formula.COPYRIGHT: (C)2012,JPO&INPIT【課題】優れた望ましくない細胞増殖抑制作用、特に抗腫瘍作用を有し、抗腫瘍剤として癌の予防剤若しくは治療剤、抗リウマチ剤などとして有用である化合物の提供。【解決手段】下記一般式で代表される、望ましくない細胞増殖によって生じる疾患を予防または治療するため化合物。【選択図】なし