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Biologically active natural products were isolated and identified by means of online LC‐bioassay, LC‐NMR, and LC‐MS from Cussonia barteri (Araliaceae), Terminalia macroptera (Combretaceae), Jasminum subtriplinerve (Oleaceae), and Petunia hybrida (Solanaceae). From C. barteri we obtained the novel C18‐polyacetylene (+)‐9(Z),17‐octadecadiene‐12,14‐diyn‐1,11(S),16(S)‐triol (2) along with its acetate 3, and two new quinic acid esters, 1′‐O‐chlorogenoylchlorogenic acid (4) and 1′‐O‐chlorogenoylneochlorogenic acid (5). Chromatographic work up of T. macroptera extracts yielded a new hydrolyzable tannin, isoterchebulin (6), and 4,6‐O‐isoterchebuloyl‐D‐glucose (7) along with some gallic acid derivatives. From J. subtriplinerve six terpene glycosides 13–18 related to anatolioside A (12), and from P. hybrida seven highly molluscicidal sucrose esters 19–22b were isolated.
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Wolfgang Kraus (2003) studied this question.
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