INDOLEAMINE 2,3-DIOXYGENASE INHIBITOR, PREPARATION METHOD THEREFOR, AND APPLICATION

摘要

The present invention relates to an indoleamine 2,3-dioxygenase inhibitor having the structure of formula (I), a preparation method therefor, and an application. The IDO inhibitor is an N′-hydroxyl-N-phenylformamidine derivative, which has a high inhibitory activity on IDO, effectively inhibits IDO activity, and may also be used to inhibit patient immunosuppression. The inhibitor may be widely applied to treat or prevent cancers or tumors, viral infections, depression, neurodegenerative disorders, trauma, age-related cataracts, organ transplant rejection or autoimmune diseases, and has the potential to be developed into a new generation of immunosuppressors.;