The invention relates to compounds of the formula 1
or a pharmaceutically acceptable salt, prodrug, solvate or hydrate thereof, wherein L, R1, R2, R3 and R4 are as defined herein. The invention also relates to pharmaceutical compositions containing the compounds of formula 1 and to methods of treating abnormal cell growth, such as cancer in a mammal by administering the compounds of formula 1.
本发明涉及公式1的化合物或其药学上可接受的盐、前药、溶剂或
水合物,其中L、R1、R2、R3和R4如本文所定义。本发明还涉及含有公式1化合物的制药组合物,以及通过给哺乳动物施用公式1化合物治疗异常细胞生长(如癌症)的方法。