Preparation and application of transhintotalphenolic acid
US7641922B2 · kind B2 · utility
0Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 2003 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Dec 29, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D307/84
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A process for preparing tanshintotalphenolic acid and the use of the product are disclosed. The process comprises: tanshin is hot-extracted with water, the extract is separated and refined by polyamide column and macroporous adsorption resin column, and lyophilized to obtain tanshintotalphenolic acid. The yield of the final end product is more than 4 percent based on the amount of crude drug and the content of totalphenolic acid is more than 80 percent. The tanshintotalphenolic acid obtained can be used as the medicine for preventing and treating cerebrovascular and cardiovascular diseases and so on.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.