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. 26, 2020
Filed:
Aug. 22, 2017
Applicant:
Shijiazhuang Sagacity New Drug Development Co., Ltd., Shijiazhuang, Hebei, CN;
Inventors:
Yunfu Luo, Shanghai, CN;
Chundao Yang, Shanghai, CN;
Maoyi Lei, Shanghai, CN;
Ling Liu, Shanghai, CN;
Guoping Hu, Shanghai, CN;
Jian Li, Shanghai, CN;
Shuhui Chen, Shanghai, CN;
Assignee:
SHIJIAZHUANG SAGACITY NEW DRUG DEVELOPMENT CO., LTD., Shijiazhuang, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 471/04 (2006.01); C07D 498/04 (2006.01); A61P 29/00 (2006.01); A61P 37/00 (2006.01); A61K 31/519 (2006.01); A61P 19/02 (2006.01);
U.S. Cl.
CPC ...
C07D 471/04 (2013.01); A61K 31/519 (2013.01); A61P 19/02 (2018.01); A61P 29/00 (2018.01); A61P 37/00 (2018.01); C07D 498/04 (2013.01);
Abstract
Provided are a PDE4 inhibitor and a use thereof in the preparation of a medicament for treating PDE4 related diseases. Specifically disclosed are the compound as shown in formula (I) and a pharmaceutically acceptable salt thereof.