Bioactive terpenoids from sunflower leaves cv. Peredovick®
2002; Elsevier BV; Volume: 61; Issue: 6 Linguagem: Inglês
10.1016/s0031-9422(02)00370-9
ISSN1873-3700
AutoresFrancisco A. Macı́as, Ascensión Torres, José Galindo, Rosa M. Varela, José A. Álvarez, José M. G. Molinillo,
Tópico(s)Allelopathy and phytotoxic interactions
ResumoThe CH2Cl2 extract of dried leaves of Helianthus annuus L. cv. Peredovick® has yielded, in addition to the known sesquiterpene lactones annuolide E and leptocarpin, and the sesquiterpenes heliannuols A, C, D, F, G, H, I, 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.
Referência(s)