小蓟中一个新的大柱香波龙烷苷(英文)

A new megastigmane glycoside from the aerial parts of Cirsium setosum

目的:研究小蓟的化学成分。方法:通过多种色谱手段进行化学成分的分离与纯化。结果:一个新的大柱香波龙烷苷和六个已知化合物被分离得到,分别是(7E,9R)-9-hydroxy-5,7-megastigmadien-4-one-9-O-α-L-arabinopyranosyl-(1→6)-β-Dglucopyanoside(1),(6R,7E,9R)-9-hydroxy-4,7-megastigmadien-3-one-9-O-α-L-arabinopyranosyl-(1→6)-β-D-glucopyranoside(2),urolignoside(3),4,9,9'-trihydroxy-3,3'-dimethoxy-8-O-4′-neolignan-7-O-β-D-glucopyranoside(4),citroside A(5),红景天苷(6),和腺苷(7)。结论:化合物1为新化合物。

AIM： To study the chemical constituents of the aerial parts of Cirsium setosum （Willd.） MB.. METHODS：The chemical constituents were isolated and purified by various chromatographic techniques. Their structures were determined on the basis of physical properties and spectroscopic data. RESULTS： A new megastigmane glycoside and six known compounds were obtained and identified as （TE, 9R）-9-hydroxy-5, 7-megastigmadien-4-one-9-O-α-L-arabinopyranosyl-（1→6）-β-D-glucopyanoside （1）, （6R, 7E, 9R）-9-hydroxy-4, 7-megastigmadien-3-one-9-O-α-L-arabinopyranosyl-（1→6）-β-D-glucopyranoside （2）, urolignoside （3）, 4, 9, 9＇-trihydroxy-3, 3＇-dimethoxy-8-O-4＇-neolignan-7-O-β-D-glucopyranoside （4）, citroside A （5）, salidrosidin （6）, and adenosine （7）. CONCLUSION： Compound 1 is a new megastigmane glycoside, named as Xiaojiglycoside A.