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[摘要]
目的研究B erland iera lya tra中的抗肿瘤活性化学成分。方法以M TT法进行抗肿瘤活性化学成分的追踪,利用硅胶柱色谱和Sephadex-LH-20分离化合物,用理化和光谱数据确定化合物结构。结果从B erland iera lya-tra的CHCl3活性部位中,分离得到了两个细胞毒活性化合物,并确定其为3α-环氧短小伯兰菊素(3-αepoxypum ilin)和短小伯兰菊素(pum ilin)。结论3α-环氧短小伯兰菊素和短小伯兰菊素是该植物抗肿瘤的主要活性成分,也是首次从该植物中分离得到的抗肿瘤活性成分。
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[Abstract]
Objective To study the antitumor natural products from Berlandiera lyatra. Methods Compounds were isolated by liquid/liquid partition and chromatography on Sephadex LH20 and silica gel columns. All process of the fractionation were run with the guidance of cytotoxicity bioassay by MTT method against three human cancer eell Iines. The chemical structures of bio-active compounds were identiffed on the basis of spectroscopic data. Results From the CHCl3-soluable fraction of the title plant,two cytotoxic compounds were isolated. They were determined as 3α-epoxypumilin and pumilin. Conclusion 3α-epoxypumilin and pumilin were responsible major compounds for the cytotoxicity in the methanolic ex tract of the plant. Both compounds were isolated from the B. 1yatra and were reported to be of antitumor activity for the first time.
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