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:
May. 25, 2021
Filed:
Apr. 13, 2018
Applicant:
Jiangsu Hengrui Medicine Co., Ltd., Jiangsu, CN;
Inventors:
Lin Wang, Jiangsu, CN;
Likun Wang, Jiangsu, CN;
Assignee:
Jiangsu Hengrui Medicine Co., Ltd., Jiangsu, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 405/04 (2006.01);
U.S. Cl.
CPC ...
C07D 405/04 (2013.01); C07B 2200/13 (2013.01);
Abstract
Relating to an opioid receptor agonist (1S,4S)-4-ethoxy-N-(2-((R)-9-(pyridin-2-yl)-6-oxaspiro[4.5]deca-9-yl)ethyl)-1,2,3,4-tetrahydronaphthalen-1-amine fumarate salt, a fumarate salt crystal form I thereof, and a preparation method and an application therefor.