US Patent Issued to CHEMITERAS on July 8 for "Triazolopyrimidines based on thymine nucleobase and methods for producing them" (Japanese Inventor)

ALEXANDRIA, Va., July 9 -- United States Patent no. 12,351,583, issued on July 8, was assigned to CHEMITERAS INC. (Yokohama, Japan).

"Triazolopyrimidines based on thymine nucleobase and methods for producing them" was invented by Tomohisa Nagamatsu (Kumamoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides novel triazolopyrimidines derived from nucleobase thymine, and methods of producing the same, as well as various biologically active substances obtained by the methods, particularly antitumor agents. The triazolopyrimidine compounds represented by the following formulas (I) to (VIII) (wherein R represents a hydrogen atom, an alkyl group, or an aryl group) and methods of ...