Hirsunin, an ellagitannin with a diarylheptanoid moiety, from Alnus hirsuta var. Microphylla
作者:Lee Min-Won、Takashi Tanaka、Gen-Ichiro Nonaka、Itsuo Nishioka
DOI:10.1016/0031-9422(92)80049-k
日期:1992.3
and the structure which consists of diarylheptanoid glycoside (oregonin) and ellagitannin (praecoxin A) moieties connected through an ester linkage has been elucidated. Furthermore, the occurrence of the seven known hydrolysable tannins, pedunculagin, praecoxin A, 1,2,6- and 1,4,6-tri- O -galloyl-β- d -glucoses, 1-desgalloyleugeniin, 1-desgalloylrugosin F, and rugosin F, along with oregonin and gentisic
摘要 从桤木的叶子中分离到了一种新的鞣花单宁,hirsunin。小叶和由通过酯键连接的二芳基庚烷苷(oregonin)和鞣花单宁(praecoxin A)部分组成的结构已被阐明。此外,七种已知的可水解单宁、花梗素、普瑞考辛 A、1,2,6- 和 1,4,6-三-O-没食子酰-β-d-葡萄糖、1-去没食子酰白菜素、1-去没食子酰白菜素 F、和 rugosin F 以及俄勒冈素和龙胆酸 5-O-β-d-(6'-O-没食子酰基)-吡喃葡萄糖苷也已得到证实。