Benzopyranones and Their Sulfate Esters from Pelargonium sidoides

 

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Abstract

Investigation of the benzopyranones from the roots of Pelargonium sidoides led to the identification of 15 benzopyranones, among them the novel compounds 12 and 14. Furthermore, benzopyranones 4 and 15 were detected in Pelargonium sidoides for the first time. Structure determinations were performed by one- and two-dimensional NMR spectroscopy. An HPLC system for the discrimination of these benzopyranones has been developed.

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Dr. Hermann Hauer

Preclinical Research
Dr. Willmar Schwabe GmbH & Co. KG

PO Box 410 925

76209 Karlsruhe

Germany

Phone: + 49 72 14 00 53 87

Fax: + 49 7 21 40 05 83 87

Email: hermann.hauer@schwabe.de

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