Furocoumarins of the roots of Prangos ferulacea
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It has been established that the treatment of oxypeucedanin and oxypeucedanin hydrate with 20% sulfuric acid in ethanol forms, in addition to known substances, a new coumarin derivative (VI), C18H20O6, with mp 93–94.5°C, for which the structure of 5-(3″-ethoxy-2″-hydroxy-3″methylbutoxy)furo-2′,3′:7,6-coumarin has been proposed. On the basis of the investigation performed and the similarity of the structures of the compounds isolated, a hypothetical scheme of the biogenesis of furocoumarins inPrangos ferulacea (L.) Lindl. has been put forward.
KeywordsCoumarin Hydroxy Group Coumarin Derivative Pyrone Mixed Melting Point
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