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:
Dec. 01, 2020
Filed:
Nov. 22, 2017
Applicant:
Jiangsu Hengrui Medicine Co., Ltd., Jiangsu, CN;
Inventors:
Assignee:
Jiangsu Hengrui Medicine Co., Ltd., Jiangsu, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 487/04 (2006.01); C07D 471/04 (2006.01); A61K 31/519 (2006.01); A61P 29/00 (2006.01); A61P 19/02 (2006.01);
U.S. Cl.
CPC ...
C07D 471/04 (2013.01); C07D 487/04 (2013.01); A61K 31/519 (2013.01); A61P 19/02 (2018.01); A61P 29/00 (2018.01); Y02P 20/55 (2015.11);
Abstract
Disclosed are an intermediate of a pyrrolo six-membered heteroaromatic ring derivative as a JAK inhibitor and a preparation method therefor, and a method for preparing a pyrrolo six-membered heteroaromatic ring derivative using the intermediate. The method improves the reaction yield, is simple and easy to operate and control, and is conducive to expanded industrial production.