Two new flavonoid diglycosides from Cephalotaxus sinensis  

作　　者：Wei Li Rong Ji Dai Yu Hong Yu Liang Li Wei Wei Meng Yu Lin Deng 

机构地区：[1]School of Life Science and Technology, Beijing Institute of Technology, Beijing 100081, China

出　　处：《Chinese Chemical Letters》2007年第7期837-839,共3页中国化学快报（英文版）

摘　　要：Two new acetylated flavonoid diglycosides, scutellarein-5-O-[α-L-rhamnopyranosyl-（1 → 4）-β-D-6-O-acetylglucopyranoside]（1）, apigenin-5-O-[α-L-rhamnopyranosyl-（1→ 2）-β-D-3,6-di-O-acetylglucopyranoside] （2）, were isolated from the leaves of Cephalotaxus sinensis. Their structures were determined by chemical and spectroscopic methods including HR-FAB-MS,^1H-^1H COSY, HSQC and HMBC experiments.Two new acetylated flavonoid diglycosides, scutellarein-5-O-[α-L-rhamnopyranosyl-（1 → 4）-β-D-6-O-acetylglucopyranoside]（1）, apigenin-5-O-[α-L-rhamnopyranosyl-（1→ 2）-β-D-3,6-di-O-acetylglucopyranoside] （2）, were isolated from the leaves of Cephalotaxus sinensis. Their structures were determined by chemical and spectroscopic methods including HR-FAB-MS,^1H-^1H COSY, HSQC and HMBC experiments.

关 键 词：Cephalotaxus sinensis （Rehd et Wile） Li Flavonoid diglycosides Scutellarein-5-O-[α-L-rhamnopyranosyl-（1→ 4）-β-D-6-O-acetylglucopyranoside] Apigenin-5-O-[α-L-rhamnopyranosyl-（1 → 2）-β-D-3 6-di-O-acetylglucopyranoside] 

分 类 号：R284[医药卫生—中药学]