论文部分内容阅读
钟状火焰树(Spathodea campanulataBcauv.)亦称非洲郁金香树,分布在落叶森林中及热带大草原的四周,钟状火焰树茎皮乙醇提取物对治疗发热有效。本文对其茎皮粗提物进行了柱层析分离,并研究了其中活性成分的抗疟作用。钟状火焰树茎皮氯仿粗提物通过硅胶柱层析,用不同比例的正己烷、醋酸乙酯和甲醇洗脱,收集洗脱液109份(每份200m1),每份洗脱液经薄层层析检查,合并其中成分相似者,最后得到三种不同的结晶物(A、B、C)。正已烷粗提物用上述类
The bell-shaped flame tree (Spathodea campanulata Bcauv.), also known as the African tulip tree, is distributed in the deciduous forest and around the savannah. The ethanol extract of the bell-shaped flame tree bark is effective for the treatment of fever. In this paper, the crude extract of its bark was separated by column chromatography, and the anti-malaria effect of the active ingredients was studied. The crude chloroform extract of the bell-shaped flame tree bark was subjected to silica gel column chromatography and eluted with different proportions of n-hexane, ethyl acetate and methanol. 109 fractions (200 ml each) were collected and each fraction was thin. Chromatography, combined with similar components, finally obtained three different crystals (A, B, C). N-hexane crude extracts used above