US Patent Issued to Amgen on Oct. 14 for "Process for preparing 7-chloro-6-fluoro-1-(2-isopropyl-4-methylpyridin-3-yl)pyrido[2,3-dpyrimidine-2,4(1H,3H)-dione" (California, Massachusetts Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,441,729, issued on Oct. 14, was assigned to Amgen Inc. (Thousand Oaks, Calif.).

"Process for preparing 7-chloro-6-fluoro-1-(2-isopropyl-4-methylpyridin-3-yl)pyrido[2,3-dpyrimidine-2,4(1H,3H)-dione" was invented by Michal Achmatowicz (San Diego), John T. Colyer (Newbury Park, Calif.), Michael T. Corbett (San Carlos, Calif.), Daniel J. Griffin (Cambridge, Mass.), Andrew T. Parsons (Cambridge, Mass.), Joanna Robinson (Los Angeles) and Kyle Quasdorf (Thousand Oaks, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided herein is a process for preparing compound A comprising (a) admixing 2-isopropyl-4-methylpyridin-3-amine (Compound B), or a salt the...