ALEXANDRIA, Va., Aug. 25 -- United States Patent no. 12,715,842, issued on Aug. 25, was assigned to KANTO DENKA KOGYO Co. LTD. (Tokyo) and KINKI UNIVERSITY (Osaka, Japan).
"D-luciferin, D-luciferin derivative, precursor of these compounds and method for producing these compounds" was invented by Kouichi Matsumoto (Osaka, Japan) and Masafumi Kobayashi (Gunma, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "To establish an unprecedented novel method for producing D-luciferin and a D-luciferin derivative without using expensive 2-cyano-6-hydroxybenzothiazole that is obtained by a multi-stage production process. In the method for producing D-luciferin and a D-luciferin derivative, the above object is achiev...