Cardenolides and coumarins ofCoronilla varia, C. cretica, etc.
The cardenolide and coumarin composition ofC. varia L. and the closely related speciesC. hyrcana Pril.,C. cretica L., andC. orientalis Müll have been investigated. It has been shown that they all contain the cardiac glycoside hyrcanoside, with the exception ofC. orientalis, in which another, unidentified, glycoside, has also been found.
A comparative study of some properties of hyrcanogenin (Δ4-strophanthidin) and pachygenin (Δ5-strophanthidin) connected with conformational features has been carried out.
In the species studied, no less than five coumarins have been found of which umbelliferone, scopoletin, and daphnoretin have been isolated.
KeywordsCoumarin Kaempferol Scopoletin Umbelliferone Cardenolides
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