Abstract
A new alkaloid, (E)-3-(3-methyl-1-oxo-2-butenyl)-6-methoxy-1 H -indole (1), along with two known ones, was isolated from the aerial parts of Cimicifuga heracleifolia. The structure of 1 was elucidated on the basis of extensive spectroscopic data analysis. The structures of known compounds were determined by comparison with the literature data.
Graphical Abstract
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Acknowledgments
This research work was financially supported by the National Natural Science Foundation of China (U1132604) and Autonomous Deployment Project (KIB2017010) of Kunming Institute of Botany, CAS.
Disclosure statement
No potential conflict of interest was reported by the authors.