Compounds represented by formula (I), as defined in the description, wherein R is a hydrogen atom or a methyl group and R1 is a group as defined in the specification, or a pharmaceutically acceptable salt thereof, are disclosed; the said compounds are useful in the treatment of cell proliferative disorders, e.g. cancer, associated with an altered cell cycle dependent kinase activity.
本发明公开了式(I)所代表的化合物,如说明书中所定义,其中R是
氢原子或
甲基,R1是如说明书中所定义的基团,或其药学上可接受的盐;所述化合物可用于治疗与细胞周期依赖性激酶活性改变有关的细胞增殖性疾病,如癌症。