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The Pharmaceutical Society of Korea (대한약학회)
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Cytotoxic Constituents of the Leaves of Ixeris sonchifolia

  • Suh, Ji-Young (College of Pharmacy, Pusan National University) ;
  • Jo, Young-Mi (College of Pharmacy, Pusan National University) ;
  • Kim, Nam-Deuk (College of Pharmacy, Pusan National University) ;
  • Bae, Song-Ja (Department of Food and Nutrition, Silla University) ;
  • Jung, Jee-H. (College of Pharmacy, Pusan National University) ;
  • Im, Kwang-Sik (College of Pharmacy, Pusan National University)
  • Published : 2002.06.01
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Abstract

The ethyl acetate extract of the leaves of Ixeris sonchifolia afforded two new and two known sesquiterpene lactone glucosides of the guaiane-type, together with a known alkenol glucoside. The known compounds were identified as ixerin Z (1), ixerin Z-6'-p-hydroxyphenylace-tate (2), and (Z)-3-hexen-1-ol-$\beta$-D-glucopyranoside (3), respectively. The structures of the new compounds were elucidated as 11, 13a-dihydroixerin Z [4, 3-hydroxy-2-oxo-guaia-1 (10), $3-dien-5{\alpha},6{\beta},7{\alpha},11{\beta}H-12,6-olide-3-O-{\beta}-D-glucopyranoside],{\;}and{\;}3,10{\$beta}-dihydroxy-2-oxo-guaia-3,11(13)-dien-1{\alpha},5{\alpha},6{\alpha},7aH-12,6-olide-10-O-{\beta}-D-glucopyranoside$ (5), respectively. The cytotoxicity of these compounds against human hepatocellular carcinoma cell (HepG2) and human melanoma cell (SK-MEL-2) was evaluated.

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References

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