Patent No. EP3632907 (titled "N-(Azaaryl)Cyclolactam-1-Carboxamide Derivative, Preparation Method Therefor, And Use Thereof") was filed by Abbisko Therapeutics on May 22, 2018. The application was issued on Feb 28, 2024.
N-(azaaryl)cyclolactam-1-carboxamide derivatives with enhanced selectivity and therapeutic window for cancer treatment, particularly in ovarian, pancreatic, and lung cancers. The compounds exhibit potent inhibition of CSF-1R kinase activity while maintaining selectivity against other kinases, thereby reducing immunogenic side effects. The compounds can be prepared through a novel synthesis pathway involving a specific intermediate.

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