Sulfated tannins and their salts
US5159069A · kind A · utility
9Cited by
3References
9Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 14, 1989 |
| Grant date | Oct 27, 1992 |
| Priority date | — |
| Expiry date | Dec 14, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07H13/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Sulfated tannins or salts thereof are herein disclosed. These compounds can be prepared by a method which comprises reacting tannin with a sulfonating agent under a basic condition. These compounds show antiviral activity and reverse transcriptase inhibitor, effects and can be used to treat patients infected with a variety of virus such as AIDS virus, herpesvirus, influenza virus or rhinovirus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.