Studies on Chemical Constituents of Antitumor Fraction from Periploca sepium. II. Structures of New Pregnane Glycosides, Periplocosides A, B and C

Hideji Itokawa, Junping Xu, Koichi Takeya, Kinzo Watanabe, Junzo Shoji

Research output: Contribution to journalArticle

42 Scopus citations


Three new pregnane glycosides, named periplocosides A, B and C, have been isolated from the antitumor fraction, which was obtained by subjecting the CHC13 extract of Periploca sepium to column chromatography over silica gel and eluting with CHCl3-MeOH (10: 1). Their structures were established by various nuclear magnetic resonance techniques and chemical evidence. The major constituents, periplocoside A, showed significant antitumor activity against Sarcoma 180 ascites in mice.

Original languageEnglish (US)
Pages (from-to)982-987
Number of pages6
JournalChemical and Pharmaceutical Bulletin
Issue number3
StatePublished - Jan 1 1988



  • 2D-NMR
  • 7-dideoxy-4-O-methyl-αD-gluco-2-heptulose
  • Asclepiadaceae
  • C-1H long-range pregnane glycoside 3
  • Periploca sepium
  • antitumor substance
  • periplocoside A

ASJC Scopus subject areas

  • Chemistry(all)
  • Drug Discovery

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