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对川西獐牙菜(Swertia mussotii Franch.)的水溶性成分进行了研究。应用层析方法,分离得到裂环烯醚萜甙,黄酮甙,(口山)酮甙,3类8种单体成分(Ⅰ—Ⅷ)。除先前报道过的芒果甙外(Ⅱ),又分离和鉴定了苦龙甙(Ⅲ),当药黄素(Ⅷ),8-O-β-D-吡喃葡萄糖-1,3,5-三羟基(口山)酮(Ⅶ),8-O-[β-D-吡喃木糖-(1→σ)-β-D-吡喃葡萄糖]-1,7-二羟基-3-甲氧基(口山)酮(Ⅵ)4种已知天然化合物。应用化学和光谱分析方法,测定另外3种新(口山)酮甙的结构为:7-O-[α-L-吡喃鼠李糖-(1→2)-β-D-吡喃木糖]-1,8-二羟基-3-甲氧基咄酮(Ⅰ),7-O-β-D-吡喃木糖-1,8-二羟基-3-甲氧基(口山)酮(Ⅳ),3-O-β-D-吡喃葡萄糖-1,8-二羟基-5-甲氧基(口山)酮(Ⅴ)。芒果甙,苦龙甙和7-O-[α-L-吡喃鼠李糖-(1→2)-β-D-吡喃木糖]-1,8-二羟基-3-甲氧基(口山)酮为川西獐牙菜主要甙类成分。有兴趣的是在已发现的龙胆科植物(口山)酮糖甙中,未见(口山)酮木糖甙,(口山)酮鼠李糖-木糖甙的报道。
The water-soluble components of Swertia mussotii Franch. were studied. Using chromatographic methods, 8 kinds of monomer components (I-VIII) of 3 classes, i.e. sepiopime, flavonoids, and ketoxime, were isolated. In addition to the previously reported mango glycosides outside (II), we isolated and identified the bitter fleas (III), when flavin (VIII), 8-O-β-D-glucopyranose-1,3,5- Tris(oxa)one (VII), 8-O-[β-D-xylopyrose-(1→σ)-β-D-glucopyranose]-1,7-dihydroxy-3-a Oxygen (oral) Ketone (VI) Four known natural compounds. Using chemical and spectral analysis methods to determine the structure of the other three new ketoximes: 7-O-[α-L-rhamrhamnose-(1→2)-β-D-pyran Sugar]-1,8-dihydroxy-3-methoxynonanone (I), 7-O-β-D-xylopyrose-1,8-dihydroxy-3-methoxy (Mouth Mountain) Keto(IV), 3-O-β-D-glucopyranose-1,8-dihydroxy-5-methoxy(oral) ketone (V). Mangiferine, Bitter Dragonfly and 7-O-[α-L-rhamnopyr-(1→2)-β-D-xylopyrose]-1,8-dihydroxy-3-methoxy (Koushan) ketone is the main anthraquinone component of Swertia chuanxiong. Interestingly, in the discovered gentiopathogens (Mouth Mountain) ketose glycosides, no (koyama) ketone xylose, (Mouth) ketone rhamnose-xylose have been reported.