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This study to investigate chemical constituents from the aerial of Bupleurum marginatum led to the isolation of a new trierpenoid and a new flavonoid, namely 3β-hydroxy-cycloart-24-en-26-acetyloxy (1), and 3, 3′, 5′-trimethoxyl-myricetin 7-O-β-D–glucopyranoside (2) along with eight known compounds (3–10). Their structures were established by spectral data analyses (MS, 1D and 2D NMR), as well as by comparison of spectral data with those of the related known compounds. The 24-en-lanostane typedoi:10.6084/m9.figshare.7862033 fatcat:qirbdtvwu5ecbbl7mkjf3ptd24