Two new steroidal saponins were isolated from the rhizome of the Chinese native plant, Speirantha gardenii (Hook.) Baill. Their structures were established as 22-methoxy-(25R)-5β-furostane-1β,3β,4β,5β,26-pentaol 26-O-β-D-glucopyranoside (I) and 22-methoxy-(25R)-5β-furostane-1β,2β,3β,4β,5β,26-hexaol 26-O-β-D-glucopyranoside (II) on the basis of chemical and spectral evidences.

steroidal saponin, Speirantha gardenii

• Compound ID: 29895
  

  b-D-Glcp-(1-26)-Subst22Me Subst = 25R-furostan-1β,3β,4β,5β,22,26-hexol = SMILES [H][C@]1(O{22}C(CC[C@@H](C){26}CO)(O)[C@H]2C)C[C@@]3([H])[C@]4([H])CC{5}[C@]5(O)[C@@H](O)[C@@H](O)C[C@@H](O)[C@]5(C)[C@@]4([H])CC[C@]3(C)[C@]12[H]

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  Structure type: monomer ; 657 [M-H]-
  C34H58O12
  Compound class: saponin glycoside
  
   
  
  Speirantha gardenii
  CSDB ID 62305 (all data & tools)
• Compound ID: 29896
  

  b-D-Glcp-(1-26)-Subst22Me Subst = 25R-furostan-1β,2β,3β,4β,5β,22,26-heptol = SMILES [H][C@]1(O{22}C(CC[C@@H](C){26}CO)(O)[C@H]2C)C[C@@]3([H])[C@]4([H])CC{5}[C@]5(O){4}[C@@H](O){3}[C@@H](O){2}[C@@H](O){1}[C@@H](O)[C@]5(C)[C@@]4([H])CC[C@]3(C)[C@]12[H]

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  Structure type: monomer ; 673 [M-H]-
  C34H58O13
  Compound class: saponin glycoside
  
   
  
  Speirantha gardenii
  CSDB ID 62306 (all data & tools)