Structure and synthesis of ether-linked proteracacinidin and promelacacinidin proanthocyanidins from Acacia caffra.
Two new ether-linked proanthocyanidins, epioritin-(4beta-->3)-epioritin-4beta-ol and epimesquitol-(4beta-->4)-epioritin-4beta-ol, were isolated from the heartwood of Acacia caffra. Their structures and absolute configurations were established by spectroscopic methods and syntheses.
Bennie
L
L
Department of Chemistry, University of the Orange Free State, Bloemfontein, South Africa.
Malan
E
E
Coetzee
J
J
Ferreira
D
D
D000045:Acacia / Q000737:chemistry*; D000872:Anthocyanins / Q000138:chemical synthesis / Q000737:chemistry*; D004987:Ethers / Q000138:chemical synthesis / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure
D000872:Anthocyanins; D004987:Ethers; C411005:epimesquitol-epioritin-4-ol; C411006:epioritin-epioritin-4-ol