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:
Jul. 15, 2025

Filed:

Apr. 23, 2020
Applicant:

Chia Tai Tianqing Pharmaceutical Group Co., Ltd., Lianyungang, CN;

Inventors:

Jianghui Jing, Lianyungang, CN;

Lihui Dong, Lianyungang, CN;

Yi Xu, Lianyungang, CN;

Xinlu Li, Lianyungang, CN;

Xifeng Lu, Lianyungang, CN;

Shang Wang, Lianyungang, CN;

Haishan Zang, Lianyungang, CN;

Min Li, Lianyungang, CN;

Zhilin Chen, Lianyungang, CN;

Xiandong Zhao, Lianyungang, CN;

Peng Sun, Lianyungang, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 31/519 (2006.01); A61K 9/20 (2006.01);
U.S. Cl.
CPC ...
A61K 31/519 (2013.01); A61K 9/2009 (2013.01); A61K 9/2013 (2013.01); A61K 9/2054 (2013.01); A61K 9/2059 (2013.01); A61K 9/2095 (2013.01);
Abstract

A solid pharmaceutical composition comprising a TLR7 agonist 2-butoxy-7-(4-(pyrrolidin-1-ylmethyl)benzyl)-5H-pyrrolo[3,2-d]pyrimidin-4-amine, a preparation method therefor, and an medical application thereof. The solid pharmaceutical composition has excellent stability and dissolution properties.


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