Tetracyclic triterpenes
US5852005A · kind A · utility
2Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1997 |
| Grant date | Dec 22, 1998 |
| Priority date | — |
| Expiry date | Jan 24, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07J51/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to 17 .alpha.-dammara compounds having immunosuppressant and antiinflammatory activity and which are useful as pharmaceuticals, particularly for use as immunosuppressant and antiinflammatory agents. Specific 17 .alpha.-dammara compounds are included per se, for example the compound of formula IC, i.e. 17 .alpha.-23-(E)-dammara-20, 23-dien-3.beta., 25-diol, which may be obtained from the flour of the shoots of the Palmyrah palm, Borassus flabellifer L. In addition, processes for the synthesis of this and other dammara compounds and intermediates thereof are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.