Ayoub Nahla A
Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt.
Phytochemistry. 2003 Jun;63(4):433-6. doi: 10.1016/s0031-9422(03)00198-5.
The unique phenolic carboxylic acids, 4,8-dimethoxy-7-hydroxy-2-oxo-2H-1-benzopyran-5,6-dicarboxylic acid and 2-(4-carboxy-3-methoxystyryl)-2-methoxysuccinic acid were isolated and identified from the whole Sanguisorba minor plant. The known phenolics, gallic acid; ellagic acid; quercetin-3-O-(6"-galloylglucose); beta-glucogallin; 2,3-hexahydroxydiphenoyl-(alpha/beta)-glucose; 1-galloyl-2,3-hexahydroxydiphenoyl-alpha-glucose together with its beta-isomer were also characterized. Structures were established by conventional methods of analysis and confirmed by NMR and ESI-MS spectral analysis.
从全株小地榆中分离并鉴定出了独特的酚酸类化合物，即4,8-二甲氧基-7-羟基-2-氧代-2H-1-苯并吡喃-5,6-二羧酸和2-(4-羧基-3-甲氧基苯乙烯基)-2-甲氧基琥珀酸。还对已知的酚类化合物，没食子酸、鞣花酸、槲皮素-3-O-(6”-没食子酰葡萄糖)、β-葡萄糖没食子酸酯、2,3-六羟基二苯甲酰基-(α/β)-葡萄糖、1-没食子酰基-2,3-六羟基二苯甲酰基-α-葡萄糖及其β-异构体进行了表征。通过常规分析方法确定了结构，并通过核磁共振和电喷雾电离质谱光谱分析进行了确认。
