期刊
PHYTOCHEMISTRY
卷 61, 期 6, 页码 687-692出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0031-9422(02)00370-9
关键词
Helianthus annuus L.; compositae; cultivar; sunflower; sesquiterpenes; annuionone E; heliannuol L; helibisabonols A, B; allelopathy; coleoptile; bioassay
The CH2CL2 extract of dried leaves of Helianthus annuus L. cv. Peredovick((R)) has yielded, in addition to the known sesquiterpene lactones annuolide E and leptocarpin, and the sesquiterpenes heliannuols A, C, D, F, G, H, 1, the new bisnorsesquiterpene, annuionone E, and the new sesquiterpenes heliannuol L, helibisabonol A and helibisabonol B. Structural elucidation was based on extensive spectral (one and two-dimensional NMR experiments) and theoretical studies. The sesquiterpenes heliannuol A and helibisabonol A and the sesquiterpene lactone leptocarpin inhibited the growth of etiolated wheat coleoptiles. (C) 2002 Elsevier Science Ltd. All rights reserved.
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