The present invention provides a novel compound or a pharmaceutically acceptable salt thereof having an inhibitory action on an EGFR tyrosine kinase having an exon 20 insertion mutation and/or a HER2 tyrosine kinase having an exon 20 insertion mutation, a compound represented by Formula (I) or a pharmaceutically acceptable salt thereof wherein R1, R2, R3, R4, R5 and R6 in the Formula (I) are each as defined in the description.
本发明提供了一种对具有外显子 20 插入突变的
表皮生长因子受体(
EGFR)
酪氨酸激酶和/或具有外显子 20 插入突变的 HER2
酪氨酸激酶具有抑制作用的新型化合物或其药学上可接受的盐,由式(I)表示的化合物或其药学上可接受的盐,其中式(I)中的 R1、R2、R3、R4、R5 和 R6 均如描述中所定义。