小蓟三萜类化合物成分的研究

对小蓟乙醇提取物中显示细胞毒活性的石油醚萃取部位进行化学成分的系统研究。运用正反相硅胶、凝胶、反相高效液相等色谱方法进行分离;应用NMR和MS等波谱学方法,并结合文献对照确定化合物结构。从小蓟乙醇提取物的石油醚萃取部位分离得到12个三萜类化合物,分别鉴定为羽扇豆醇乙酸酯(1),羽扇豆醇(2),羽扇豆酮(3),β-香树酯醇(4),伪蒲公英甾醇(5),伪蒲公英甾醇乙酸酯(6),蒲公英甾醇乙酸酯(7),marsformoxide B(8),α-香树酯酮(9),β-香树酯酮(10),蒲公英甾酮(11),伪蒲公英甾酮(12)。化合物3,5,7～12为首次从蓟属植物中分离得到。

Triterpene compounds from Cirsium setosum

To investigate chemical constituents contained in cytotoxic petroleum ether extractive fractions from ethanol extracts of Cirsium setosum. The constituents were separated and purified by a combination of various chromatographic methods including silica gel, Sephadex LH-20, and preparative HPLC. Structures of the isolates were elucidated by spectroscopic methods including 1D, 2D NMR and MS methods. The compound structures were also determined by reference to literature. Twelve compounds were separated from the petroleum ether fraction of ethanolic extract and elucidated as lupenyl acetate (1), lupeol (2), lupenone (3), beta-amyrin (4), psi-taraxasterol (5), psi-taraxasteryl acetate (6), taraxasteryl acetate (7), marsformoxide B (8), alpha-amyrenone (9), beta-amyrenone (10), taraxasterone (11) and psi-taraxasterone (12). Of them, compounds 3, 5, 7-12 were separated from this genus for the first time.