A new flavonoid named saniculamin C (1), together with six known compounds (2-7), were isolated from the whole plants of Sanicula lamelligera Hance. The chemical structures were elucidated by spectroscopic and physico-chemical analyses. All isolates were evaluated for in
Fourteen sesquiterpene and norsesquiterpene derivatives, comprising six different carbon skeletons, were isolated from Sanicula lamelligera. Saniculamoid A1 (1a) is an oxidation product of saniculamoid A (1), created by the transition of a formyl group to a carboxylic acid group after a period of