This invention relates to certain novel fused quinazoline derivatives (Formula I) as c-Met inhibitors which is shown as formula I, their synthesis and their use for treating a c-Met mediated disorder. More particularly, this invention is directed to fused heterocyclic derivatives useful inhibitors of c-Met, methods for producing such compounds and methods for treating as c-Met mediated disorder本発明は、式Iで示されるc-Met阻害薬としての特定の新規な縮合キナゾリン誘導体(式I)、その合成およびc-Met媒介性障害の処置のためのその使用に関する。より詳しくは、本発明は、c-Metの阻害薬として有用な縮合複素環式誘導体、かかる化合物の作製方法およびc-Met媒介性障害の処置方法に関する。