C21 steroidal glycosides from Cynanchum taihangense

J Asian Nat Prod Res. 2018 Mar;20(3):263-269. doi: 10.1080/10286020.2017.1329302. Epub 2017 May 24.

Abstract

Two new C21 steroidal glycosides, cynataihosides E (1) and F (2), together with a known one, sublanceoside H2 (3), were isolated from Cynanchum taihangense. The aglycone of cynataihoside F (2) was also a new compound. Their structures were elucidated on the basis of NMR spectroscopic data, HR-ESI-MS analysis, and chemical evidence. Their cytotoxic activities against three human tumor cell lines (HL-60, THP1, and Caco2) were reported.

Keywords: Asclepiadaceae; Cynanchum taihangense; NMR data; cytotoxicity; deoxypyranoses; steroidal glycosides.

MeSH terms

  • Caco-2 Cells
  • Cynanchum / chemistry*
  • Glycosides / chemistry
  • Glycosides / isolation & purification*
  • Glycosides / pharmacology
  • HL-60 Cells
  • Humans
  • Molecular Structure
  • Nuclear Magnetic Resonance, Biomolecular
  • Plant Roots / chemistry
  • Steroids / chemistry
  • Steroids / isolation & purification*
  • Steroids / pharmacology

Substances

  • Glycosides
  • Steroids