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利用多种色谱分离方法对川西獐牙菜的化学成分进行研究,从其全草的乙醇提取物中分离得到四个化合物,应用HR-ESIMS,1D和2D NMR,IR,UV等多种现代波谱技术确定了这些化合物的化学结构,经鉴定分别为(S,2E,6E)-2,6-二甲基-4,8-二羟基辛烷-2,6-二烯酸(1),(S,2E,6E)-2,6-二甲基-4-羟基-8-甲酰氧基辛烷-2,6-二烯酸(2),swerimilegenins B和C(3和4).化合物1和2为两个新的链状单萜类化合物,分别命名为川西獐牙菜酸C和D,化合物3和4是两个不常见的C_9骨架的环烯醚萜,为首次从该植物中分离得到.
The chemical constituents of Swertia chuanchuan were studied by using a variety of chromatographic methods. Four compounds were isolated from the ethanol extracts of the whole plant, and were characterized by HR-ESIMS, 1D and 2D NMR, IR, UV and other modern spectroscopy The chemical structures of these compounds were determined by the techniques identified as (S, 2E, 6E) -2,6-dimethyl-4,8-dihydroxyoctane-2,6-dienoic acid S, 2E, 6E) -2,6-dimethyl-4-hydroxy-8-formoyloxyoctane-2,6- dienoic acid (2), swerimilegenins B and C (3 and 4) 1 and 2 are two new chain monoterpenes, named as Schizandra chinensis C and D respectively. Compounds 3 and 4 are two uncommon C9 skeleton iridoids, In the isolated.