The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 25, 2026
Filed:
Mar. 18, 2022
Applicants:
Kanto Denka Kogyo Co., Ltd., Tokyo, JP;
Kinki University, Osaka, JP;
Inventors:
Kouichi Matsumoto, Osaka, JP;
Masafumi Kobayashi, Gunma, JP;
Assignees:
KANTO DENKA KOGYO CO., LTD., Tokyo, JP;
KINKI UNIVERSITY, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 323/58 (2006.01); C07C 319/20 (2006.01); C07D 417/04 (2006.01);
U.S. Cl.
CPC ...
C07C 323/58 (2013.01); C07C 319/20 (2013.01); C07D 417/04 (2013.01);
Abstract
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 achieved via a novel substituted diaminodithioether represented by the following formula (1): wherein X is H, OCHor OH; and Y, Z and W are H or monovalent organic groups, which serves as a precursor.