The present invention relates to purine compounds that are useful as kinase Inhibitors.More particularly, the present invention relates to purine compounds, methodsfor their preparation, pharmaceutical compositions containing these compoundsand uses of these compounds in the treatment of proliferative conditions or disorders.These compounds may be useful as medicaments for the treatment of a number of proliferativeconditions or disorders including tumours and cancers as well as other disordersor conditions related to or associated with PI3 and/or mTOR kinases. Formula(I).