MUMBAI, India, Sept. 12 -- Intellectual Property India has published a patent application (202517071539 A) filed by Vulpes Agricultural Corp., St. Louis, on July 28, for 'optically active amino acid salts and method for their preparation.'
Inventor(s) include Yu, Dihu; and Shang, Rick.
The application for the patent was published on Sept. 12, under issue no. 37/2025.
According to the abstract released by the Intellectual Property India: "The present invention discloses optically active glufosinate-lysine salts, with the structures of formulas (I - IV) shown below. The present invention also discloses a method of preparing the the optically active glufosinate-lysine salts, comprising using D,L-glufosinate or its salt as raw material, using D-lysine or L-lysine as the resolution agent, and obtaining L-glufosinate-D-lysine salt, D-glufosinate-D-lysine salt, L-glufosinate-L-lysine salt or D-glufosinate-L-lysine salt by resolution reaction, crystallization, and filtration in the suitable resolution agent system. D-glufosinate-D-lysine salt or L-glufosinate-L-lysine salt is prepared with the resolution solvent as an anhydrous system; and L-glufosinate-D-lysine salt or D-glufosinate-L-lysine salt is prepared with the resolution solvent as an aqueous system."
The patent application was internationally filed on Jan. 24, 2024, under International application No.PCT/US2024/012729.
Disclaimer: Curated by HT Syndication.
