ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,552,813, issued on Feb. 17, was assigned to MEDSHINE DISCOVERY INC. (Jiangsu, China).

"Heterocyclic substituted pyrimidopyran compound and use thereof" was invented by Yang Zhang (Shanghai), Wentao Wu (Shanghai), Zhixiang Li (Shanghai), Wenyuan Zhu (Shanghai), Ping Yang (Shanghai), Qiu Li (Shanghai), Jian Li (Shanghai) and Shuhui Chen (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention discloses a heterocyclic substituted pyrimidopyran compound and use thereof, and specifically discloses a compound represented by formula (VII) and a pharmaceutically acceptable salt thereof."

The patent was filed on March 6, 2025, under Applic...