Glycosides of the leaves of Symplocos spp. (Symplocaceae).
作者:TAKASHI TANAKA、KEIKO KAWAMURA、HIROSHI KOHDA、KAZUO YAMASAKI、OSAMU TANAKA
DOI:10.1248/cpb.30.2421
日期:——
A new dihydrochalcone-glucoside named confusoside (3) was isolated from the leaves of Symplocos confusa. This compound (3) was elucidated to be the 4'-O-β-D-glucoside of davidigenin (4) (2', 4, 4'-trihydroxyldihydrochalcone) by 1H and 13C nuclear magnetic resonance spectroscopy. No dihydrochalcone-glycoside could be isolated from the leaves of the following plants of Symplocaceae : S. glauca, S. lucida, S. myrtacea, S. liukiuensis, S. prunifolia, S. theophrastaefolia, S. cochinchinensis and S. chinensis var. leucocarpa. However, verbenalin (6) was isolated from the leaves of S. glauca.
从 Confusa Symplocos 的叶子中分离出一种新的二氢查耳酮-葡萄糖苷,命名为 confusoside (3)。通过 1H 和 13C 核磁共振光谱分析,该化合物(3)被确定为大维皂苷(4)的 4'-O-β-D-Glucoside (2',4,4'-trihydroxyldihydrochalcone) 。从以下茜草科植物的叶片中无法分离出二氢查尔酮苷:S. glauca、S. lucida、S. myrtacea、S. liukiuensis、S. prunifolia、S. theophrastaefolia、S. cochinchinensis 和 S. chinensis var. leucocarpa。不过,从 S. glauca 的叶片中分离出了马鞭草苷(6)。