Chemical constituents of the aerial parts of Kalidium foliatum

Chem Pharm Bull (Tokyo). 2007 Sep;55(9):1356-60. doi: 10.1248/cpb.55.1356.

Abstract

Studies on the chemical constituents of the aerial parts of Kalidium foliatum have led to the isolation of three new and one known compounds. The structures of new constituents have been elucidated through spectral studies including 2D-NMR experiments (HMQC, HMBC, COSY, NOESY and J-resolved) and MS/MS fragmentation using Q-TOF mass spectrometer equipped with an ESI source as kalidiumoside C (=3beta-hydroxy-29-methylmalonoxy-olean-12-en-23,28-dioic acid-23-methyl-28-beta-D-glucopyranosyl ester; 1), kalidiunin (=3beta,23,29-trihydroxy-olean-12-en-28-methyl-oate; 2) and kalidiumoside D (=3beta,23,29-trihydroxyolean-12-en-28-oic acid-beta-D-glucopyranosyl ester; 3). The known compound was identified as 3beta,23,29-trihydroxy-olean-12-en-28-oic acid 4) through comparison of its spectral data with those reported in literature. Acid hydrolysis of both 2 and 3 yielded the known compound 4 providing a conclusive evidence of the proposed structures.

MeSH terms

  • Acetylation
  • Chenopodiaceae / chemistry*
  • Hydrolysis
  • Magnetic Resonance Spectroscopy
  • Mass Spectrometry
  • Molecular Conformation
  • Molecular Weight
  • Spectrometry, Mass, Electrospray Ionization
  • Spectrophotometry, Infrared
  • Spectrophotometry, Ultraviolet
  • Triterpenes / chemistry

Substances

  • Triterpenes