Substituted Benzofuran, Benzopyrrole, Benzothiophene, and Structurally Related Complement Inhibitors

The USPTO published a patent application (US20260092045A1) disclosing novel compounds of formulae I and II, and their pharmaceutically acceptable salts and prodrugs, which function as complement system inhibitors. The application covers pharmaceutical compositions comprising these compounds and methods of using them in treatment or prevention of diseases characterized by aberrant complement activity. The application includes CPC classifications spanning multiple heterocyclic compound categories (C07D 401/10, C07D 209/12, C07D 261/20, C07D 307/80, C07D 333/64, C07D 401/12, C07D 405/10).

Patent application publications are informational notices and do not create immediate compliance obligations. Pharmaceutical companies developing complement inhibitor therapeutics may wish to review this application to assess potential freedom-to-operate considerations or prior art implications for their own programs. No response or action is required from regulated entities regarding this document.