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:
Aug. 05, 2014

Filed:

Oct. 21, 2005
Applicants:

Seul Min Choi, Suwon-Si, KR;

Byong OK Ahn, Yongin-Si, KR;

Moohi Yoo, Seoul, KR;

Inventors:

Seul Min Choi, Suwon-Si, KR;

Byong Ok Ahn, Yongin-Si, KR;

Moohi Yoo, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 31/519 (2006.01); A61P 7/04 (2006.01); C07D 487/04 (2006.01); A61P 9/08 (2006.01);
U.S. Cl.
CPC ...
A61K 31/519 (2013.01); C07D 487/04 (2013.01);
Abstract

The present invention relates to the pharmaceutical composition for prevention and treatment of liver diseases containing pyrazolopyrimidine derivative as an active ingredient. According to the present invention, pyrazolopyrimidine derivative has an excellent effect on inhibiting collagen synthesis in hepatic stellate cells and acts directly on the portal vein. Particularly, it may increase the diameter and the amount of blood flow of the portal vein, and finally decrease the pressure thereof. Therefore, pyrazolopyrimidine derivative can be used advantageously for prevention and treatment of hepatic fibrosis, liver cirrhosis caused by hepatic fibrosis, portal hypertension and various complications caused by portal hypertension. In addition, pyrazolopyrimidine derivative according to the present invention can reduce dosing frequency because of its long half-life, and therefore, has an advantage to improve the drug compliance of patients suffering from chronical liver diseases.


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