The invention relates to substituted quinazoline derivative of the formula (I), wherein A, X
1
, X
2
, X
3
, X
4
and R
5
are as defined in the description. Such compounds are suitable for the treatment of a disorder or disease which is mediated by the activity of the PI3K enzymes.
本发明涉及公式(I)的取代
喹唑啉衍
生物,其中A、X1、X2、X3、X4和R5如描述中所定义。这种化合物适用于治疗由
PI3K酶活性介导的疾病或疾患。