New Phenolic Constituents from the Fruit Juice of Phyllanthus emblica.
作者:Ying-Jun ZHANG、Takashi TANAKA、Chong-Ren YANG、Isao KOUNO
DOI:10.1248/cpb.49.537
日期:——
Six new phenolic constituents, L-malic acid 2-O- (1), mucic acid 2-O- (5), mucic acid 1,4-lactone 2-O- (6), 5-O- (8), 3-O- (10), and 3,5-di-O- (11) gallates, were isolated from the fruit juice of Phyllanthus emblica together with their methyl esters (2-4, 7, 9), and their structures were determined by spectral and chemical methods. Compounds 5, 6, and 8, the major phenolic constituents of the juice
六种新的酚类成分,L-苹果酸2-O-(1),粘酸2-O-(5),粘酸1,4-内酯2-O-(6),5-O-(8),从余甘子的果汁中分离出3-O-(10)和3,5-di-O-(11)没食子酸酯及其甲酯(2-4、7、9),其结构为通过光谱和化学方法测定。果汁中主要的酚类成分化合物5、6和8作为平衡混合物存在于水溶液中。