Four new allose-containing triterpenoid saponosides, scabriosides A, B, C and D were isolated from the roots of Scabiosa rotata. Their structures were established as 3-O-beta-D-xylopyranosyl-28-O-[beta-D-allopyranosyl (1-->6)-beta-D-glucopyranosyl]-pomolic acid, 3-O-[alpha-L-rhamnopyranosyl (1-->2)-beta-D-xylopyranosyl]-28-O-[beta-D-allopyranosyl (1-->6)-beta-D-glucopyranosyl]-pomolic acid, 3-O-[alpha-L-rhamnopyranosyl (1-->2)-alpha-L-arabinopyranosyl]-28-O-[beta-D-allopyranosyl (1-->6)-beta-D-glucopyranosyl]-pomolic acid, and 3-O-[beta-D-glucopyranosyl (1-->3)-alpha-L-rhamnopyranosyl (1-->2)-beta-D-xylopyranosyl]-28-O-[beta-D-allopyranosyl(1-->6) -beta-D-glucopyranosyl]-pomolic acid, respectively, by the help of spectral evidence (IR, 1D- and 2D-NMR, FAB-MS).

pomolic acid, Dipsacaceae, Scabiosa rotata, triterpenoid saponosides, Scabrioside A, Scabrioside B, Scabrioside C, Scabrioside D

• Compound ID: 28807
  

  b-D-Xylp-(1-3)-+ | b-D-Allp-(1-6)-b-D-Glcp-(1-28)-Subst Subst = pomolic acid = SMILES CC1(C){3}[C@@H](O)CC[C@]2(C)[C@@]3([H])CC=C4[C@]5([H]){19}[C@](C)(O)[C@H](C)CC[C@@]({28}C(O)=O)5CC[C@](C)4[C@@](C)3CC[C@@]12[H]

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  Structure type: oligomer ; 951 [M+Na]+
  C47H76O18
  Trivial name: scabrioside A
  Compound class: triterpenoid glycoside
  
   
  
  Scabiosa rotata
  CSDB ID 61400 (all data & tools)
• Compound ID: 28808
  

  a-L-Rhap-(1-2)-b-D-Xylp-(1-3)-+ | b-D-Allp-(1-6)-b-D-Glcp-(1-28)-Subst Subst = pomolic acid = SMILES CC1(C){3}[C@@H](O)CC[C@]2(C)[C@@]3([H])CC=C4[C@]5([H]){19}[C@](C)(O)[C@H](C)CC[C@@]({28}C(O)=O)5CC[C@](C)4[C@@](C)3CC[C@@]12[H]

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  Structure type: oligomer ; 1097 [M+Na]+
  C53H86O22
  Trivial name: scabrioside B
  Compound class: triterpenoid glycoside
  
   
  
  Scabiosa rotata
  CSDB ID 61401 (all data & tools)
• Compound ID: 28809
  

  a-L-Rhap-(1-2)-b-D-Arap-(1-3)-+ | b-D-Allp-(1-6)-b-D-Glcp-(1-28)-Subst Subst = pomolic acid = SMILES CC1(C){3}[C@@H](O)CC[C@]2(C)[C@@]3([H])CC=C4[C@]5([H]){19}[C@](C)(O)[C@H](C)CC[C@@]({28}C(O)=O)5CC[C@](C)4[C@@](C)3CC[C@@]12[H]

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  Structure type: oligomer ; 1097 [M+Na]+
  C53H86O22
  Trivial name: scabrioside C
  Compound class: triterpenoid glycoside
  
   
  
  Scabiosa rotata
  CSDB ID 61402 (all data & tools)
• Compound ID: 28810
  

  b-D-Allp-(1-6)-b-D-Glcp-(1-28)-+ | b-D-Glcp-(1-3)-a-L-Rhap-(1-2)-b-D-Xylp-(1-3)-Subst Subst = pomolic acid = SMILES CC1(C){3}[C@@H](O)CC[C@]2(C)[C@@]3([H])CC=C4[C@]5([H]){19}[C@](C)(O)[C@H](C)CC[C@@]({28}C(O)=O)5CC[C@](C)4[C@@](C)3CC[C@@]12[H]

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  Structure type: oligomer ; 1259 [M+Na]+
  C59H96O27
  Trivial name: scabrioside D
  Compound class: triterpenoid glycoside
  
   
  
  Scabiosa rotata
  CSDB ID 61403 (all data & tools)