Nine compounds were isolated and identified from the stem of Picramnia antidesma. Two of the isolated compounds: mayoside and saroside, which is new, are diastereoisomeric oxanthrones. The structure of saroside has been obtained on the basis of spectroscopic evidence. The absolute configuration of this diastereoisomeric pair has been determined by CD spectra, and that of saroside was further established by X-ray crystallographic analysis.

Simaroubaceae, Picramnia antidesma, oxanthrone, saroside

• Compound ID: 31062
  

  b-D-Glcp2Ac3Ac4Ac6Ac-(1-3)-Subst Subst = β-sitosterol = SMILES O{3}[C@H](C1)CC[C@@]2(C)C1=CC[C@]3([H])[C@@]2([H])CC[C@@]4(C)[C@]3([H])CC[C@]4([C@@H](C)CC[C@@H](CC)C(C)C)[H]

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  Structure type: monomer
  Compound class: saponin glycoside
  
   
  
  Picramnia antidesma
  CSDB ID 64144 (all data & tools)
• Compound ID: 31063
  

  b-D-Glcp-(1-8)-Subst Subst = emodin = SMILES O{1}C(C=C(C=C1C(C2=C3{8}C(O)=C{6}C(O)=C2)=O)C)=C1C3=O

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  Structure type: monomer
  Compound class: glycoside, xanthone glycoside
  
   
  
  Picramnia antidesma
  CSDB ID 64145 (all data & tools)
• Compound ID: 31064
  

  Subst-(10C-5)-a-D-Lyxp-(1-7)-Bz Subst = mayoside aglycone = SMILES Cc1c{8}c(O)c2c(c1){10}[C@@H](O)c1c{3}c(O)c{1}c(O)c1C2=O

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  Structure type: monomer
  Trivial name: mayoside
  Compound class: xanthone glycoside
  
   
  
  Picramnia antidesma
  CSDB ID 64146 (all data & tools)
• Compound ID: 31065
  

  Subst-(10C-5)-a-D-Lyxp-(1-7)-Bz Subst = saroside aglycone = SMILES Cc1c{8}c(O)c2c(c1){10}[C@H](O)c1c{3}c(O)c{1}c(O)c1C2=O

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  Structure type: monomer
  Trivial name: saroside
  Compound class: xanthone glycoside
  
   
  
  Picramnia antidesma
  CSDB ID 64147 (all data & tools)