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:
Jan. 21, 2025
Filed:
Jul. 17, 2020
Applicant:
Nippon Chemiphar Co., Ltd., Tokyo, JP;
Inventors:
Daisuke Saito, Misato, JP;
Kohei Hayashida, Misato, JP;
Assignee:
NIPPON CHEMIPHAR CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 471/08 (2006.01);
U.S. Cl.
CPC ...
C07D 471/08 (2013.01);
Abstract
Provided is, for example, a method for producing a morphinan derivative represented by General Formula (II), including the step of: allowing metal sodium and ethylenediamine to act on a morphinan derivative represented by General Formula (I) in presence of an auxiliary solvent.