Journal
PLANTA MEDICA
Volume 89, Issue 5, Pages 508-515Publisher
GEORG THIEME VERLAG KG
DOI: 10.1055/a-1841-0745
Keywords
Garcinia schomburgkiana; Clusiaceae; polyprenylated benzoylphloroglucinols; garschomcinols A - E; cytotoxicity
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Five undescribed polyprenylated benzoylphloroglucinol derivatives (1-5) and five known analogues (6-10) were isolated from Garcinia schomburgkiana branches. Their structures were determined using NMR and HRESIMS analysis. Compound 6 exhibited potent cytotoxicity against five cancer cell lines with IC (50) values ranging from 5.05 to 7.03 μM.
Five undescribed polyprenylated benzoylphloroglucinol derivatives ( 1 - 5 ), named garschomcinols A - E, and five known analogues ( 6 - 10 ) were isolated from the branches of Garcinia schomburgkiana . Their structures were determined on the basis of 1D and 2D NMR and HRESIMS analyses. The absolute configuration of the bicyclo [3.3.1]nonane core structure of the polyprenylated benzoylphloroglucinols was assigned by comparison of its experimental electronic circular dichroism data with that of related compounds. All isolated compounds were evaluated for their cytotoxicity in vitro against five cancer cell lines. Compound 6 showed potent cytotoxicity against five cancer cell lines including KB, HeLa S3, HT-29, MCF-7, and Hep G2 with IC (50) values in the range of 5.05 - 7.03 mu M.
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