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.

Date of Patent:
May. 05, 2020

Filed:

Aug. 02, 2016
Applicant:

Yaopharma Co., Ltd., Chongqing, CN;

Inventors:

Zhirong Zhang, Sichuan, CN;

Meiling Zhou, Sichuan, CN;

Yan Zhang, Chongqing, CN;

Assignee:

YAOPHARMA CO., LTD., Chongqing, CN;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61K 31/365 (2006.01); A61K 31/496 (2006.01); C07D 493/04 (2006.01); A61K 47/54 (2017.01); A61P 37/06 (2006.01); A61P 11/00 (2006.01); A61P 35/00 (2006.01); A61K 9/00 (2006.01); A61K 31/135 (2006.01); A61K 31/573 (2006.01);
U.S. Cl.
CPC ...
A61K 31/365 (2013.01); A61K 9/0019 (2013.01); A61K 31/496 (2013.01); A61K 47/545 (2017.08); A61K 47/555 (2017.08); A61P 11/00 (2018.01); A61P 35/00 (2018.01); A61P 37/06 (2018.01); C07D 493/04 (2013.01); A61K 31/135 (2013.01); A61K 31/573 (2013.01);
Abstract

A compound represented by formula (I) or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable formulation prepared using the compound and the salt. The compound represented by formula (I) or the pharmaceutically acceptable salt exhibits significantly higher buildup and concentration in the lungs compared to other tissues, a longer dwell time in the lungs, and/or elevated pharmaceutical efficacy.


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