A New Eremophilane Sesquiterpene with Nematocidal Activity from Ligularia veitchiana
- 8 Downloads
A new eremophilane sesquiterpene, 10α-hydroxy-3-oxoeremophil-1(2),7(11),8(9)-trien-8(12)-olide (1), was isolated from Ligularia veitchiana. The structure of the new compound was elucidated by physical and spectroscopic data analysis, including 1D NMR and 2D NMR and HR-ESI-MS. Compound 1 showed inhibitory activity against the second-stage juveniles (J2) of Meloidogyne incognita with an LC50 value of 134.5 mg/L.
KeywordsLigularia veitchiana eremophilane sesquiterpene Meloidogyne incognita nematocidal activity
This work was supported by the National Science Foundation of China (Grant No. 31570407) and the National College Students Innovation and Entrepreneurship Training Program (Grant No. GCCX2018110011).