1 research outputs found
Identification of Potent Indoleamine 2,3-Dioxygenase 1 (IDO1) Inhibitors Based on a Phenylimidazole Scaffold
Inhibition
of indoleamine 2,3-dioxygenase (IDO1) is an attractive
immunotherapeutic approach for the treatment of a variety of cancers.
Dysregulation of this enzyme has also been implicated in other disorders
including Alzheimer’s disease and arthritis. Herein, we report
the structure-based design of two related series of molecules: <i>N</i>1-substituted 5-indoleimidazoles and <i>N</i>1-substituted 5-phenylimidazoles. The latter (and more potent) series
was accessed through an unexpected rearrangement of an imine intermediate
during a Van Leusen imidazole synthesis reaction. Evidence for the
binding modes for both inhibitor series is supported by computational
and structure–activity relationship studies