This invention relates to certain novel pyrazine derivatives (Formula I) as SHP2 inhibitors which is shown as formula I, their synthesis and their use for treating a SHP2 mediated disorder. More particularly, this invention is directed to fused heterocyclic derivatives useful as inhibitors of SHP2, methods for producing such compounds and methods for treating a SHP2-mediated disorder.本發明涉及可作為SHP2抑制劑的某些新型吡嗪衍生物(如結構式I所示),以及它們的合成及其用於治療SHP2介導的病症的用途。更具體地說,本發明涉及可用作SHP2抑制劑的稠合雜環衍生物,製備此類化合物的方法以及治療SHP2介導的疾病的方法。