Helikaurolides A鈥揇 with a Diterpene-Sesquiterpene Skeleton from Supercritical Fluid Extracts of Helianthus annuus L. var. Arianna
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- 作者：Ascensi贸n Torres ; Jos茅 M. G. Molinillo ; Rosa M. Varela ; Lourdes Casas ; Casimiro Mantell ; Enrique J. Mart铆nez de la Ossa ; Francisco A. Mac铆as
- 刊名：Organic Letters
- 出版年：2015
- 出版时间：October 2, 2015
- 年：2015
- 卷：17
- 期：19
- 页码：4730-4733
- 全文大小：283K
- ISSN：1523-7052
文摘
Four novel compounds (1鈥?b>4) with an unprecedented skeleton that combines a sesquiterpene lactone and a kaurane diterpene acid were isolated from Helianthus annuus L. var. Arianna extract, which was obtained under supercritical conditions. The structures of 1鈥?b>4 were elucidated by NMR and MS analyses. The biosynthetic routes involve sesquiterpene lactones and kauranic acid, both of which were previously isolated from this species.