Two new kaempferol glycosides from the seeds of Camellia semiserrata Chi  

作　　者：Ling Tang Xiao Juan Wu Bao Min Feng Li Ying Shi Xue Yan Fu Yong Qi Wang Mei Feng Liu 

机构地区：[1]College of Bioengineering, Dalian University, Dalian 116622, China [2]Liaoning Key Laboratory of Bioorganic Chemistry, Dalian University, Dalian 116622, China [3]Pharmaceutical Department, Ningxia Medical University, Yinchuan 750004, China [4]School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China

出　　处：《Chinese Chemical Letters》2011年第7期835-838,共4页中国化学快报（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(No.30772714)

摘　　要：Two new acetylated kaempferol glycosides were isolated from the seeds of Camellia semiserrata Chi, their structures were elucidated as kaempferol-3-O-[（3-O-acetyl）-a-L-rhamnopyranosyl（1 →3）（4-O-acetyl）-α-L-rhamnopyranosyl（1→ 6）-β-D-glucopyranoside] （1） and kaempferol-3-O-[（2-O-acetyl）-α-L-rhamnopyranosyl （1 →3）（4-O-acetyl）-α-L-rhamnopyranosyl（1 →6）-β-D- gluco-pyranoside] （2） by spectral experiments （including ESI-MS, 1D- and 2D-NMR）..Two new acetylated kaempferol glycosides were isolated from the seeds of Camellia semiserrata Chi, their structures were elucidated as kaempferol-3-O-[（3-O-acetyl）-a-L-rhamnopyranosyl（1 →3）（4-O-acetyl）-α-L-rhamnopyranosyl（1→ 6）-β-D-glucopyranoside] （1） and kaempferol-3-O-[（2-O-acetyl）-α-L-rhamnopyranosyl （1 →3）（4-O-acetyl）-α-L-rhamnopyranosyl（1 →6）-β-D- gluco-pyranoside] （2） by spectral experiments （including ESI-MS, 1D- and 2D-NMR）..

关 键 词：Camellia semiserrata Chi Kaempferol glycosides THEACEAE 

分 类 号：TQ655[化学工程—精细化工] TS272.5[农业科学—茶叶生产加工]