Imidazopyrazinamine phenyl derivatives, pharmaceutically acceptable salts and hydrates thereof, or metabolites thereof formed by any form of metabolism, and uses thereof in the preparation of medicaments for preventing and/or treating indications/diseases associated with BTK functions are disclosed. The disclosed imidazopyrazinamine phenyl derivatives are ideal high-efficient BTK inhibitors for treating or preventing diseases such as rheumatoid arthritis, B cell lymphoma, leukemia, multiple myeloma, allergies, asthma, multiple sclerosis, type I diabetes and systemic lupus erythematosus.
