ALEXANDRIA, Va., July 21 -- United States Patent no. 12,686,671, issued on July 21, was assigned to LG CHEM Ltd. (Seoul, South Korea).

"Method for preparing sphingosine-1-phosphate receptor agonist" was invented by Sung Wook Kim (Daejeon, South Korea), Ki Dae Kim (Daejeon, South Korea), Soo Min Lee (Daejeon, South Korea) and Doo Sup Shin (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a novel method for preparing a compound of chemical Formula 7, or a salt thereof, which is disclosed in the present specification and can be effectively used as a sphingosine-1-phosphate receptor agonist."

The patent was filed on April 14, 2022, under Application No. 18/555...