Extraction of the aerial parts of Ophiorrhiza rosacea Ridley (Rubiaceae) has yielded harman-2-oxide (1). Extraction of the aerial parts of O. kunstleri King yielded the alkaloids palicoside (3) and 3,14-didehydro-19-methylnormalindine (8). The structures of these compounds followed from their spectroscopic properties.

natural products, alkaloids, Ophiorrhiza, indole

• Compound ID: 31484
  

  b-D-Glcp-(1-19)-Subst23Me Subst = strictosidinic acid aglycon = SMILES C=C[C@@H]1[C@H](C[C@H]2C3=C(C4=CC=CC=C4N3)CCN2)C({23}C(O)=O)=CO{19}[C@H]1O

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  Structure type: monomer
  Trivial name: strictosidine
  Compound class: glycoside
  Reference(s) to other database(s): GenDB:AF112888
  
   
  
  (plant)
  CSDB ID 65199 (all data & tools)
• Compound ID: 31483
  

  b-D-Glcp-(1-19)-Subst23Et Subst = strictosidinic acid aglycon = SMILES C=C[C@@H]1[C@H](C[C@H]2C3=C(C4=CC=CC=C4N3)CCN2)C({23}C(O)=O)=CO{19}[C@H]1O

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  Structure type: monomer
  Trivial name: palicoside
  Compound class: glycoside
  
   
  
  Ophiorrhiza kunstleri
  CSDB ID 65198 (all data & tools)
• Compound ID: 31485
  

  b-D-Glcp-(1-21)-Subst Subst = isodihydrocadambine aglycon = SMILES O=C(C1=CO{21}[C@@H](O)[C@H]2[C@@H]1C[C@@H]3C4=C(C5=CC=CC=C5N4)CCN3[C@H]2{23}CO)OC

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  Structure type: monomer
  Compound class: glycoside
  
   
  
  Anthocephalum cadamba
  CSDB ID 65200 (all data & tools)