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菊科洋蓟属植物西班牙洋蓟(Scolymushispanicus L.)广泛分布于土耳其的爱琴海和地中海地区。该植物根皮的乙醇提取物因有利尿活性故在土耳其作民间药用。文献报道,新鲜的洋蓟果中含0.3％的游离糖,cinnarin和四种黄酮类化合物。本文从其石油醚的提取物中分离出一种新的三萜酯。用石油醚(bp 40～60℃)提取1.5kg自然干燥的植物根皮细粉,以硅胶柱(Merk 0.2～0.5mm)层析,石油醚—苯(7:3)洗脱,得到由两种Rf值相近的化合物组成的残渣,继用制备型TLC板(Merck硅胶,0.5mm厚)纯化,以石油醚—苯(65:35)展开,Rf值较高的一种化合物因含量甚微可被忽略,洗脱第二条色带得到的化合物经乙醇重结晶为
The genus Amaranthus Scolymushispanicus L. is widely distributed in the Aegean and Mediterranean regions of Turkey. The ethanol extract of the root bark of the plant is used for folk medicine in Turkey due to its diuretic activity. The literature reports that fresh yamberry contains 0.3% free sugar, cinnarin and four flavonoids. This article isolated a new triterpene ester from its petroleum ether extract. 1.5 kg of naturally-dried plant root bark powder was extracted with petroleum ether (bp 40-60°C), and was chromatographed on a silica gel column (Merk 0.2-0.5 mm) eluted with petroleum ether-benzene (7:3) to obtain two The residue consisting of a compound with a similar Rf value was subsequently purified using a preparative TLC plate (Merck silica gel, 0.5 mm thick) and developed with petroleum ether-benzene (65:35). The compound with a high Rf value was very little Can be ignored. The compound obtained by elution of the second ribbon is recrystallized from ethanol.