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Structure type: oligomer ; 952 [M-H]-
C₄₈H₇₂O₁₉
Trivial name: stauntoside A
Compound class: saponin glycoside

• Article ID: 11748
  Zhu N, Wang M, Kikuzaki H, Nakatani N, Ho CT "Two C21-steroidal glycosides isolated from Cynanchum stauntoi" - Phytochemistry 52(7) (1999) 1351-1355
  

  Studies on the roots of Cynanchum stauntoi led to the isolation of two C21-steroidal glycosides, formally named stauntosides A and B. Their structures were elucidated on the basis of spectroscopic evidence, especially that from analysis of 2D-NMR spectra. They were found to possess an unusual skeleton and were identified as stauntogenin 3-O-α-L-diginopyranosyl-(1-4)-β-L-cymaropyranosyl-(1-4)-β-D-digitoxopyranosyl-(1-4)-β-D-thevetopyranoside and stauntogenin 3-O-α-L-cymaropyranosyl-(1-4)-β-D-digitoxopyranosyl-(1-4)-β-D-3-demethyl-2-deoxy-thevetopyranoside.

  NMR assignments, two-dimensional NMR techniques, Cynanchum stauntoi, Ascelepiadaceae, C21-steroidal glycosides, stauntoside A, stauntoside B

  NCBI PubMed ID: 10647217
  Publication DOI: 10.1016/S0031-9422(99)00439-2
  Journal NLM ID: 0151434
  Publisher: Elsevier
  Institutions: Department of Food Science, Rutgers, The State University of New Jersey, 65 Dudley Road, New Brunswick, NJ 08901-8520, USA, Department of Food & Nutrition, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka, Japan
  Methods: 13C NMR, 1H NMR, FAB-MS, TLC, HPLC, optical rotation measurement, HMBC, HMQC, COSY, NOESY, APCI-MS
  
   
  
  Cynanchum stauntoi
  CSDB ID 62764 (all data & tools)

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Structure type: oligomer ; 801 [M+Na]+
C₄₀H₅₈O₁₅
Trivial name: stauntoside B
Compound class: saponin glycoside

• Article ID: 11748
  Zhu N, Wang M, Kikuzaki H, Nakatani N, Ho CT "Two C21-steroidal glycosides isolated from Cynanchum stauntoi" - Phytochemistry 52(7) (1999) 1351-1355
  

  Studies on the roots of Cynanchum stauntoi led to the isolation of two C21-steroidal glycosides, formally named stauntosides A and B. Their structures were elucidated on the basis of spectroscopic evidence, especially that from analysis of 2D-NMR spectra. They were found to possess an unusual skeleton and were identified as stauntogenin 3-O-α-L-diginopyranosyl-(1-4)-β-L-cymaropyranosyl-(1-4)-β-D-digitoxopyranosyl-(1-4)-β-D-thevetopyranoside and stauntogenin 3-O-α-L-cymaropyranosyl-(1-4)-β-D-digitoxopyranosyl-(1-4)-β-D-3-demethyl-2-deoxy-thevetopyranoside.

  NMR assignments, two-dimensional NMR techniques, Cynanchum stauntoi, Ascelepiadaceae, C21-steroidal glycosides, stauntoside A, stauntoside B

  NCBI PubMed ID: 10647217
  Publication DOI: 10.1016/S0031-9422(99)00439-2
  Journal NLM ID: 0151434
  Publisher: Elsevier
  Institutions: Department of Food Science, Rutgers, The State University of New Jersey, 65 Dudley Road, New Brunswick, NJ 08901-8520, USA, Department of Food & Nutrition, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka, Japan
  Methods: 13C NMR, 1H NMR, FAB-MS, TLC, HPLC, optical rotation measurement, HMBC, HMQC, COSY, NOESY, APCI-MS
  
   
  
  Cynanchum stauntoi
  CSDB ID 62765 (all data & tools)