ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,427, issued on Jan. 27, was assigned to ZHEJIANG MEDICINE Co. LTD. XINCHANG PHARMACEUTICAL FACTORY (Zhejiang, China).
"Method for preparing chiral 4-aryl-Beta-amino acid derivative" was invented by Li Sheng (Shaoxing, China), Xufeng Wu (Shaoxing, China), Dadong Shen (Shaoxing, China), Gang Fan (Shaoxing, China), Pengcheng Liu (Shaoxing, China) and Dengfeng Dong (Shaoxing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a method for preparing a chiral 4-aryl-Beta-amino acid derivative. The preparation method comprises hydrogenating an enamine compound having a structure as shown in Formula III in an organic solvent...