Imperatorin
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| Template:Longitem | C16H14O4 |
| Molar mass | 270.28 g/mol |
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Imperatorin is a furocoumarin and a phytochemical that has been isolated from Urena lobata L. (Malvaceae), Angelica archangelica,[1] Angelica dahurica,[2] Glehnia littoralis,[3] Saposhnikovia divaricata,[4] Cnidium monnieri,[5] Incarvillea younghusbandii,[6] and Zanthoxylum americanum mill.[7] It is biosynthesized from umbelliferone, a coumarin derivative.[8]
Isolation
The procedure for the isolation of imperatorin from Urena lobata involves exhaustively extracting under reflux with benzene the air-dried and pulverised roots followed by separation by column chromatography.[9]
Biochemical activity
Imperatorin was identified from a Bioactive Molecules library in a high throughput screening experiment for inhibitors of the phosphodiesterase PDE4. It displays a significant preference for PDE4B over PDE4A.[10] Imperatorin has been shown to have anti-inflammatory activity in chondrocytes.[11] Imperatorin treatment inhibits the expression of iNOS and suppresses the production of NO in osteoarthritic chondrocytes.[11]
See also
- Psoralen, the parent furocoumarin.
References
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- ↑ F. M. Dean Naturally Occurring Oxygen Ring Compounds, Butterworths, London, 1963.
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