Summary
From the epigeal part ofInula britannica L. a new sesquiterpene lactone has been obtained — britannin, with the composition C19H26O7, mp 192–194°C (from ethanol). [α] 20D –26° (c 5.0; chloroform). Structure (I) has been proposed for it.
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Literature cited
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Additional information
All-Union Scientific-Research Institute for Medicinal Plants. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 276–280, May–June, 1971.
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Chugunov, P.V., Sheichenko, V.I., Ban'kovskii, A.I. et al. The structure of britannin — A sesquiterpene lactone from Inula britannica. Chem Nat Compd 7, 265–268 (1971). https://doi.org/10.1007/BF00568995
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DOI: https://doi.org/10.1007/BF00568995