Summary
From the roots ofFerula kopetdaghensis Eug. Kor. a new coumarin has been isolated which has been called kopetdaghin. On the basis of the hydrolysis products, the results of hydrogenation and acetylation, and spectroscopy, it has been established that kopetdaghin is an ether of 7-hydroxycoumarin and 1-(3-hydroxy-2,2,6-trimethylcyclohex-5-enyl)-3-methylpent-2-en-1-ol, i.e., an isomer of farnesiferol B.
Furthermore, farnesiferol B has been shown to consist of a natural mixture of kopetdaghin (30%) and a component with the structure previously proposed for it (70%).
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Literature cited
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Additional information
Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 442–447, July–August, 1974.
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Kamilov, K.M., Nikonov, G.K. Coumarins of Ferula kopetdaghensis — Kopetdaghin and kopeodin (farnesiferol B). Chem Nat Compd 10, 450–453 (1974). https://doi.org/10.1007/BF00563804
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DOI: https://doi.org/10.1007/BF00563804