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...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.展开更多
A novel 8,4＇-oxyneolignan diglycoside,named ligusinenoside d（1）,was isolated from the rhizomes of Ligusticum sinensis, together with five known analogues 2-6.The absolute configurations of 1 and 2 were elucidated b...A novel 8,4＇-oxyneolignan diglycoside,named ligusinenoside d（1）,was isolated from the rhizomes of Ligusticum sinensis, together with five known analogues 2-6.The absolute configurations of 1 and 2 were elucidated by means of enzymatic hydrolysis and spectroscopic data.展开更多
文摘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.
基金financial support of this work by the science fund for scholars from Lanzhou University of Technology(No.BS08201001)
文摘A novel 8,4＇-oxyneolignan diglycoside,named ligusinenoside d（1）,was isolated from the rhizomes of Ligusticum sinensis, together with five known analogues 2-6.The absolute configurations of 1 and 2 were elucidated by means of enzymatic hydrolysis and spectroscopic data.
