论文信息 - New Eremophilenolactones from Senecio nemorensis

New Eremophilenolactones from Senecio nemorensis

Three new eremophilane sesquiterpenes were isolated from the MeOH extract of the roots of Senecio nemorensis. Their structures were identified as 8α-hydroxy-6β-(isobutanoyloxy)-1-oxoeremophila-7(11),9-dieno-12,8β-lactone (1), 6β,8β-dimethoxy-1-oxoeremophila-7(11),9-dieno-12,8α-lactone (2), and 10α-hydroxy-6β-(isobutanoyloxy)-1-oxoeremophila-7(11),8-dieno-12,8-lactone (3), respectively, based on spectroscopic data, including IR, EI-MS, HR-ESI-MS, and 1D- and 2D-NMR data.

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