Natural Product Sciences

The Korean Society of Pharmacognosy (한국생약학회)
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Triterpenoid Saponins from Vaccaria segetalis

  • Sang, Shengmin (Shaghai Institute of Materia Medica, Chinese Academy of Sciences) ;
  • Lao, Aina (Shaghai Institute of Materia Medica, Chinese Academy of Sciences) ;
  • Wang, Hongcheng (Shaghai Institute of Materia Medica, Chinese Academy of Sciences) ;
  • Chen, Zhongliang (Shaghai Institute of Materia Medica, Chinese Academy of Sciences) ;
  • Uzawa, Jun (The Institute of Physical and Chemical Research (RIKEN)) ;
  • Fujimoto, Yasuo (College of Pharmacy, Nihon University)
  • Published : 1998.12.01
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Abstract

Two new triterpenoid saponins, named segetoside D and E, have been isolated from the seeds of Vaccaria segetalis. On the basis of chemical reactions and spectral data, structures of segetoside D and E have been established as: $28-O-[{\beta}-D-xylopyranosyl-(1{\rightarrow}4)-{\alpha}-L-rhamnopyranosyl-(1{\rightarrow}2)]-[5-O-acetyl-{\alpha}-arabinofuranosyl(1{\rightarrow}3)]-[4-O-acetyl-{\beta}-D-fucopyranosyl]-quillaic\;acid-3-O-[{\beta}-D-galactopyranosyl(1{\rightarrow}2)]6-O-methyl\;ester-{\beta}-D-glucuronopyranoside$ and $28-O-[{\beta}-D-xylopyranosyl-(1{\rightarrow}4)-{\alpha}-L-rhamnopyranosyl-(1{\rightarrow}2)]-[5-O-acetyl-{\alpha}-arabinofuranosyl(1{\rightarrow}3)]-[4-O-acetyl-{\beta}-D-fucopyranosyl]-quillaic\;acid\;-3-O-[{\beta}-D-galactopyranosyl(1{\rightarrow}2)]-6-O-n-butyl\;ester-{\beta}-D-glucuronopyranoside$, respectively.

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