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Structure type: oligomer
Compound class: saponin glycoside
Contained glycoepitopes: IEDB_141806,IEDB_142488,IEDB_142489,IEDB_146664,IEDB_149135,IEDB_241101,IEDB_983931,SB_192,SB_86

• Article ID: 10119
  Itokawa H, Xu J, Takeya K "Pregnane glycosides from an antitumor fraction of Periploca sepium" - Phytochemistry 27 (1988) 1173-1179
  

  Three new pregnane glycosides (S-4a, S-5 and S-10) and two known pregnane glycosides (S-4b and S-6) were isolated from an antitumour fraction of the root barks of Periploca sepium. Their structures were determined by 1H and 13C NMR, FABMS and SIMS spectroscopy and some chemical transformations. One of the glycosides (S-4a) contained the new aglycone Δ5-pregnene-3β,16β,20(R)-triol.

  Periploca sepium, Aselepiadaccae, pregnane glycoside, Δ5-pregnene-3β, 16β, 20R-triol, 16α, 20(S)-triol, 20S-triol

  Publication DOI: 10.1016/0031-9422(88)80297-8
  Journal NLM ID: 0151434
  Publisher: Elsevier
  Institutions: Tokyo College of Pharmacy, Tokyo, Japan
  Methods: 13C NMR, 1H NMR, FAB-MS, partial acid hydrolysis, acid hydrolysis, acetylation analysis
  
   
  
  Periploca sepium
  CSDB ID 145543 (all data & tools)

Show legend Show as text

Structure type: oligomer ; 1203 [M+K]+
C₅₆H₉₂O₂₅
Trivial name: S-4a
Compound class: saponin glycoside
Contained glycoepitopes: IEDB_141806,IEDB_142488,IEDB_142489,IEDB_146664,IEDB_149135,IEDB_241101,IEDB_983931,SB_192,SB_86

• Article ID: 10119
  Itokawa H, Xu J, Takeya K "Pregnane glycosides from an antitumor fraction of Periploca sepium" - Phytochemistry 27 (1988) 1173-1179
  

  Three new pregnane glycosides (S-4a, S-5 and S-10) and two known pregnane glycosides (S-4b and S-6) were isolated from an antitumour fraction of the root barks of Periploca sepium. Their structures were determined by 1H and 13C NMR, FABMS and SIMS spectroscopy and some chemical transformations. One of the glycosides (S-4a) contained the new aglycone Δ5-pregnene-3β,16β,20(R)-triol.

  Periploca sepium, Aselepiadaccae, pregnane glycoside, Δ5-pregnene-3β, 16β, 20R-triol, 16α, 20(S)-triol, 20S-triol

  Publication DOI: 10.1016/0031-9422(88)80297-8
  Journal NLM ID: 0151434
  Publisher: Elsevier
  Institutions: Tokyo College of Pharmacy, Tokyo, Japan
  Methods: 13C NMR, 1H NMR, FAB-MS, partial acid hydrolysis, acid hydrolysis, acetylation analysis
  
   
  
  Periploca sepium
  CSDB ID 245543 (all data & tools)