Flavan derivatives. XI. Teracacidin, melacacidin, and 7,8,4'-trihydroxyflavonol from Acacia sparsiflora, and extractives from Acacia orites

Abstract

(-)-Teracacidin (7,8,4'-trihydroxy-2,3-cis-flavan-3,4-cis-diol) has been isolated from Acacia sparsiflora, and obtained crystalline for the first time. The leucoanthocyanidin was accompanied by melacacidin and 7,8,4'-trihydroxyflavonol.