Patent 7335773 was granted and assigned to Graceway Pharmaceuticals on February, 2008 by the United States Patent and Trademark Office.
Imidazonaphthyridine and tetrahydroimidazonaphthyridine compounds induce the biosynthesis of cytokines such as interferon and tumor necrosis factor. The compounds exhibit antiviral and antitumor properties. Methods of preparing the compounds and intermediates useful in the preparation of the compounds are disclosed.