Oligomeric Flavanoids. Part 28. Structure and Synthesis of Ether-linked (4-O-3)-Bis-teracacidins, a Novel Class of Naturally Occurring Proanthocyanidins

Abstract

The range of natural dimeric proteracacinidins is extended by identification of the first (4-O-3)-linked bis-teracacidins, epioritin-(4β→3)-epioritin-4α-ol 13 and epioritin-(4β→3)-oritin-4α-ol 16 in the heartwood extract of Acacia galpinii.

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