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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. stennocaryx H. W. Li ex T. N. Ho. Whole plants were composed of six kinds of ketones, one flavonoid glycoside and two triterpenoic acids. Chemically and spectroscopically identified as 1-hydroxy-3,7,8-trimethoxy (oral) ketone (I), 1,7-dihydroxy-3,8-dimethoxy (oral) Ketone (II),1,7,8-trihydroxy-3-methoxy (oral) ketone (III), 1-O-[β-D-xylopyrose-(1→)-β-D -Glucopyranose]-3,7,8-trimethoxy-(keto)ketone (IV), 1-O-[β-D-xylopyrose-(1→6)-β-D-pyran Glucose]-7-Hydroxy-3,8-dimethoxyl (oral) ketone (V), 1-O-[beta-D-pyrantophane-(1→6)-β-D-pyran Glucose]-7,8-dihydroxy-3-methoxy (oral) ketone (VI), luteolin-7-O-β-D-glucoside (VII), oleanolic acid (VIII) and Ursolic acid (IX).