The invention discloses a
tricyclic compound as well as a preparation method and application thereof. Relates to a compound shown in a general formula (I), a preparation method thereof and a pharmaceutical composition containing the compound. The invention also relates to the application of the compound in preparation of medicines for treating or preventing autoimmune diseases, inflammatory diseases, cancers, viral diseases, neurodegenerative diseases,
hereditary diseases,
hormone-related diseases, metabolic diseases,
organ transplantation-related diseases,
immunodeficiency diseases, destructive bone diseases, proliferative diseases, infectious diseases and the like. The invention also relates to the application of the
medicine for treating diseases related to
cell death or cardiovascular diseases. Wherein each
substituent in the general formula (I) is as defined in the specification.