Agent for treatment of liver diseases containing pyrazolopyrimidinone derivative
US8796286B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2005 |
| Grant date | Aug 5, 2014 |
| Priority date | — |
| Expiry date | Oct 27, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D487/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.