𝔖 Bobbio Scriptorium
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Heliespirone A. The first member of a novel family of bioactive sesquiterpenes

✍ Scribed by Francisco A. Macías; Rosa.M. Varela; Ascensión Torres; JoséMa G. Molinillo

Publisher
Elsevier Science
Year
1998
Tongue
French
Weight
205 KB
Volume
39
Category
Article
ISSN
0040-4039

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✦ Synopsis

Heliespinore A, the first member of a novel family of bioactive sesquiterpenes, a potential allelopathic agent, has been isolated from cultivar sunflowers vat. SH-222® (Helianthus annuus L.). The structure displays an unusual previously unknown spirosesquiterpene skeleton of Heliespirane. The structure elucidation of Heliespinone A was performed by homo-and hetero-nuclear 2D-NMR spectral data. On the basis of combined studies of the theoretical conformations and NOEDIFF data its relative stereochemistry is proposed.

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