The invention provides compounds of formula I
and pharmaceutically acceptable salts thereof.
The formula I compounds inhibit tyrosine kinase activity thereby making them useful as anticancer agents.
本发明提供了公式I的化合物及其药学上可接受的盐。公式I的化合物抑制
酪氨酸激酶活性,因此它们可用作抗癌剂。