The present invention provides an EGFR kinase inhibitor and a preparation method and use thereof. Specifically, the present invention provides a compound as shown in formula (I), the definition of each group therein being as described in the description. Said compound is an efficient EGFR inhibitor.
                            本发明提供了一种
表皮生长因子受体激酶
抑制剂及其制备方法和用途。具体而言,本发明提供了一种如式(I)所示的化合物,其中各基团的定义如说明书所述。所述化合物是一种高效的
表皮生长因子受体
抑制剂。