Antiproliferative Constituents from Umbelliferae Plants(9)New Triterpenoid Glycosides from the Fruits of Bupleurum rotundifolium

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  • Antiproliferative Constituents from Umbelliferae Plants. IX. New Triterpenoid Glycosides from the Fruits of Bupleurum rotundifolium

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The MeOH extract of the fruits of Bupleurum rotundifolium showed inhibitory activity against human gastric adenocarcinoma (MK-1) cell growth. Bioactivity-guided fractionation of the MeOH extract led to the isolation of four new triglycosides of 13β,28-epoxy oleanane-type triterpenes, named rotundiosides O, Q, S and T; 12 new glycosides of oleanane-type triterpenes, named rotundiosides J—N, P, R, U—Y, and others; echinocystic acid 3-O-sulfate; and three known oleanane-type triterpene glycosides, rotundiosides A, F and G. The structures of the new isolates were determined based on chemical and spectroscopic evidence. The GI50 of isolates against MK-1, HeLa and B16F10 cell lines are reported.

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