Coumarin sulphates of Seseli libanotis |
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Authors: | John Lemmich Marawan Shabana |
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Affiliation: | Department of Chemistry BC, Royal Danish School of Pharmacy, 2 Universitetsparken, DK-2100 Copenhagen, Denmark |
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Abstract: | Three new sulphate ester salts derived from known coumarin alcohols–one of them tertiary–have been obtained from roots of Seseli libanotis subsp. eu-libanotis. Their structures were established as (2′S)-rutaretin-1″-sulphate, (3′R)-lomatin-3′-sulphate and (3′R,4′R)-khellactone-3′-sulphate. They were together with their parent alcohols characterized by 13C NMR spectroscopy. It is the first report on coumarin sulphates in plants. |
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Keywords: | Umbelliferae dihydrofurocoumarins dihydropyranocoumarins coumarin sulphates sulphate ester salts FDMS |
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