Abstract:

A new C-glycosylflavone, named panzhihuacycaside (1), was isolated from the leaves of Cycas panzhihuaensis L. Zhou et S. Y. Yang (Cycadaceae) along with 2,3-dihydrohinokiflavone (2), 5,5″,7,7″,4′,4-hexahydroxy-(2′,8″)-biflavone (3), vanillic acid (4),β-sitosterol (5) and daucosterol (6). Their structures were elucidated by spectral and chemical evidence.

攀枝花苏铁叶中的一个新黄酮碳甙

周燕  彭树林  李朝銮  王明奎  丁立生^*

(中国科学院成都生物研究所,成都,610041)

摘要：从攀枝花苏铁(Cycas panzhihuaensis L. Zhou et S. Y. Yang)叶中分离出6个化合物,其中1个为新黄酮碳甙,命名为攀枝花苏铁甙(1),其结构通过波谱解析和化学降解得以确定.其余化合物分别鉴定为2,3-二氢偏柏黄酮(2)、 5,5″,7,7″,4′, 4-六羟基-(2′,8″)-双黄酮(3)、香草酸(4)、β-谷甾醇(5)和胡萝卜甙(6).

关键词 攀枝花苏铁 黄酮碳甙 攀枝花苏铁甙 

*通讯作者

Key words: Cycas panzhihuaensis, C-glycosylflavone, panzhihuacycaside