Achillea arten

The dienamides (5) [13] and (7) [14] have been isolated from Leucocyclus formosus and the tetradecadienoylpyrrolidine (8) and piperidine (9) have been found in Achillea arten [14] and Otanthus maritimus [15] respectively. The isobutylamides (10-12) have been extracted from the fruits of Piper guineense collected in the western parts of Nigeria [16]. Trichonine (13) and compounds (12) and (16) have the longest dienamide chains isolated so far and they are found in Piper trichostachyon leaves [17]. 

Das Ponticaepoxyd kommt nicht nur in Artemisia pontica L. vor, sondem konnte aus verschiedenen Arten der Gattungen Artemisia L., Achillea L., Chrysanthemum L. und Cladanthus L. isoliert werden (69), die alle zum Tribus Anthemidea gehoren. 

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