One new triterpene glycoside, asiaticoside I (1), along with seven known ones (2-8), were isolated from the aerial parts of Cimicifuga dahurica (Turcz.) Maxim. The structure of 1 was elucidated on the basis of extensive spectroscopic methods including 1D-NMR, 2D-NMR and MS data. The structures of known compounds were determined by comparison with the literature data. Compound 1 exhibited moderate cell growth inhibitory activities in vitro against HELF, non-small cell lung cancer A549, and pancreatic cancer PANC-1 cell lines, with IC50 values of 62.97, 43.19, and 60.40 μM, respectively.
Keywords: Cimicifuga dahurica; Ranunculaceae; asiaticoside; the aerial part; triterpene glycoside.