The following general formula suitable for the treatment of diseases characterized by excessive or abnormal cell proliferation present invention, (1) (Wherein groups R 1 ~R 4, Q a, Q b, Q H, n and L are defined as in claim 1) for use as drugs and their pharmaceutical formulations containing compounds, the compounds encompasses. None [Selection Figure]本発明は、過剰又は異常な細胞増殖を特徴とする疾患の治療に適した下記一般式(1)(式中、基R1~R4、Qa、Qb、QH、L及びnは請求項1の定義どおりである)の化合物、該化合物を含む医薬製剤及びそれらの薬物としての使用を包含する。【選択図】なし