细萼扁蕾的化学成分研究  

STUDY ON CHEMICAL CONSTITUENTS OF GENTIANOPSIS BARBATA VAR.STENNOCALYX H.W.LI EX T.N.HO

作　　者：纪兰菊[1] 丁经业[1] 樊淑芬[1] 孙洪发[1] 

机构地区：[1]中国科学院西北高原生物研究所,西宁810001

出　　处：《Acta Botanica Sinica》1992年第3期203-207,共5页Acta Botanica Sinica（植物学报：英文版）

基　　金：国家自然科学基金

摘　　要：从细萼扁蕾(Gentianopsis barbata var.stennocaryx H.W.Li ex T.N.Ho)全草中分离得到9种化合物,6种(口山)酮成分,1种黄酮甙,2种三萜酸。经化学和光谱方法,分别鉴定为1-羟基-3,7,8-三甲氧基(口山)酮(Ⅰ),1,7-二羟基-3,8-二甲氧基(口山)酮(Ⅱ),1,7,8-三羟基-3-甲氧基(口山)酮(Ⅲ),1-O-[β-D-吡喃木糖-(1→)-β-D-吡喃葡萄糖]-3,7,8-三甲氧基(口山)酮(Ⅳ),1-O-[β-D-吡喃木糖-(1→6)-β-D-吡喃葡萄糖]-7-羟基-3,8-二甲氧基(口山)酮(Ⅴ),1-O-[β-D-吡喃木塘-(1→6)-β-D-吡喃葡萄糖]-7,8-二羟基-3-甲氧基(口山)酮(Ⅵ),木樨草素-7-O-β-D-葡萄糖甙(Ⅶ),齐墩果酸(Ⅷ)和熊果酸(Ⅸ)。Nine compounds were isolated from Gentianopsis barbata var.stennocalyx H.W.Li ex T.N.Ho.Their structures are identified as 1-hydroxy-3,7,8-trimethoxyxanthone(Ⅰ),1,7-di- hydroxy-3,8-dimethoxyxanthone(Ⅱ),1,7,8-trihydroxy-3-methoxyxanthone(Ⅲ),1-O-(β-D- xylopyranosyl-(1→6)-β-D-glucopyranosyl)-3,7,8-trimethoxyxanthone(Ⅳ),1-O-(β-D-xylopy- ranosyl-(1→6)-β-D-glucopyranosyl)-7-hydroxy-3,8-dimethoxyxanthone(Ⅴ),1-O-(β-D-xylo- pyranosyl-(1→6)-β-D-glucopyranosyl)-7,8-dihydroxy-3-methoxyxanthone(Ⅵ),luteolin-7-O- β-D-glucoside(Ⅶ),oleanolic acid(Ⅷ)and ursolic acid(Ⅸ)by means of chemical me- thods and UV,IR and NMR determinations respectively.

关 键 词：化学成分 龙胆科 细萼扁蕾 

分 类 号：Q949.776.4[生物学—植物学]