The compound (as shown in formula (I)) and application thereof that the present invention relates to new as CDK type small molecular inhibitors, further relate to the purposes containing the pharmaceutical composition of above compound and these compounds and composition in the disease for the treatment of hyperproliferative disorders. Novel compound of present invention is strong cell cycle protein dependent kinase 4 (cdk4) or cell cycle protein dependent kinase 6 (cdk6) inhibitor.本發明涉及新的作爲CDK類小分子抑制劑的化合物(如式(I)所示)及其用途，還涉及含有上述化合物的藥物組合物，以及這些化合物和組合物在治療過度增殖性紊亂的疾病的用途。本發明的新化合物是有力的細胞周期蛋白依賴性激酶4(cdk4)或細胞周期蛋白依賴性激酶6(cdk6)抑制劑。
