Imidazopyrazine compounds, preparation method and application

The present invention belongs to the technical field of medicine, and relates to imidazo pyrazine compounds, preparation method and application. In particular, the present invention relates to compounds having the structure represented by the formula (the I), a pharmaceutically acceptable salt thereof, a stereoisomer thereof or a prodrug thereof, and the compound, a pharmaceutically acceptable salt thereof, a stereochemically isomer or prodrug for the manufacture of a medicament, said medicament for preventing and / or excessive activity of Bruton's tyrosine kinase associated disease treating and / or symptoms. The present invention further relates to the compound, pharmaceutically acceptable salt, stereoisomer or prodrug thereof for the preparation of the formulation, the formulation for reducing or inhibiting cell Bruton tyrosine kinase active.