Abstract
AbstractFour new 9,19‐cyclolanostane‐type triterpenes (1–4), were isolated from the rhizomes of Cimicifuga foetida. On the basis of spectroscopic analysis, their chemical structures were elucidated as 1,7‐dien‐cimigenol‐3,12‐dione (1), 1‐en‐cimigenol‐3,11‐dione (2), 11(‐hydroxy‐7‐en‐cimigenol‐3‐one (3), and (20R,24R)‐24,25‐epoxy‐11(‐hydroxy‐7‐en‐9,19‐cyclolanost‐3,16,23‐trione (4).
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