US Patent Issued to Guangdong Lewwin Pharmaceutical Research Institute, Guangdong CS-Lewwin Drug Research on March 25 for "Pyrimidine derivative and preparation process and use thereof" (Chinese Inventors)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,258,331, issued on March 25, was assigned to Guangdong Lewwin Pharmaceutical Research Institute Co. Ltd. (Guangdong, China) and Guangdong CS-Lewwin Drug Research Co. Ltd. (Guangdong, China).

"Pyrimidine derivative and preparation process and use thereof" was invented by Xingshu Li (Guangdong, China), Xinzi Chen (Guangdong, China), Wei Yang (Guangdong, China) and Jianmin Guo (Guangdong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention discloses a method of treating tumor using a novel pyrimidine derivative. It is demonstrated through the tests on anti-tumor activity at the cellular level (tumor cells expressed with c-Met) that,...