US Patent Issued to SHANGHAI HAIYAN PHARMACEUTICAL TECHNOLOGY, YANGTZE RIVER PHARMACEUTICAL GROUP on Feb. 10 for "Substituted oxaspiro[4.5decanes as mor receptor agonists" (Chinese Inventors)

ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,545,680, issued on Feb. 10, was assigned to SHANGHAI HAIYAN PHARMACEUTICAL TECHNOLOGY Co. LTD. (Shanghai) and YANGTZE RIVER PHARMACEUTICAL GROUP Co. LTD. (Jiangsu, China).

"Substituted oxaspiro[4.5decanes as mor receptor agonists" was invented by Bin Hu (Shanghai), Jing Xie (Shanghai), Kai Zhang (Shanghai), Wen Yang (Shanghai), Xiaoyong Shi (Shanghai) and Huiping Guan (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are an azabicyclic substituted oxaspiro derivative, a preparation method therefor and a medical use thereof. Specifically, provided are compounds represented by formula (I) and formula (II) or pharmaceutically acceptable sal...