The present invention provides compounds of the formula (I) :or the pharmaceutically acceptable salts thereof, wherein G, W, R2, R3, R4, R5and R6are as defined in the specification. Further objects of the invention are processes and intermediates for the preparation of the compounds of the formula (I), pharmaceutical compositions comprising them and methods for treating cell proliferative disorders. As a matter of fact, the compounds of the formula (I) are useful, in therapy, in the treatment of diseases associated with a disregulated protein kinase activity, like cancer.本發明提供式(I)化合物:或其醫藥上可接受之鹽,其中G、W、R2、R3、R4、R5及R6係如說明書之定義。本發明之進一步之目的為製備式(I)化合物用之方法及中間產物、包含該等化合物之醫藥組成物及治療細胞增生病症之方法。實際上,式(I)化合物可用於與蛋白質激酶活性失調相關聯之疾病例如癌症之治療。