ALEXANDRIA, Va., May 12 -- United States Patent no. 12,623,992, issued on May 12, was assigned to SHENZHEN CATALYS TECHNOLOGY Co. LTD (Shenzhen, China).

"Key intermediate for synthesis of prostaglandin compound and preparation method thereof" was invented by Xiaobing Ding (Hangzhou, China), Qiwei Lang (Hangzhou, China), Wei Su (Hangzhou, China) and Shuang Gao (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to the technical field of organic chemical engineering, and in particular to a key intermediate for synthesizing prostaglandin compounds and a preparation method therefor. When applied to the synthesis of prostaglandin compounds, the process flow is simplified,...