从青阳参提取的带7个糖残基的新C_(21)甾体苷(英文)  被引量:6

C21 steroidal glycosides with seven sugar residues extracted from Cynanchum otophyllum Schneid

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作  者:赵益斌[1] 任虹燕[1] 张培华 左国营[1] 张青[1] 徐贵丽[1] 

机构地区:[1]成都军区昆明总医院〈昆明医学院教学医院〉药剂科 [2]解放军77298部队卫生队

出  处:《西南国防医药》2008年第5期625-631,共7页Medical Journal of National Defending Forces in Southwest China

基  金:国家自然科学基金资助项目(30572322);云南省自然科学基金资助项目(2005C0036Q)

摘  要:目的:了解青阳参片中化合物的结构。方法:对青阳参(萝藦科)根茎的乙酸乙酯提取物(即青阳参片),用柱层析的方法分离,得到的纯化合物再用光谱方法测定结构。结果:分离出2个新的C21甾体苷,每个都有7个单糖残基。结构被分别确定为:告达亭3-O-α-L-磁麻吡喃糖基-(1→4)-α-D-夹竹桃吡喃糖基-(1→4)-α-L-磁麻吡喃糖基-(1→4)-β-D-葡萄吡喃糖基-(1→4)-α-D-夹竹桃吡喃糖基-(1→4)-β-D-夹竹桃吡喃糖基-(1→4)-β-D-2-脱氧毛地黄吡喃糖苷(1);和告达亭3-O-β-D-磁麻吡喃糖基-(1→4)-α-D-夹竹桃吡喃糖基-(1→4)-α-L-磁麻吡喃糖基-(1→4)-β-D-葡萄吡喃糖基-(1→4)-β-D-夹竹桃吡喃糖基-(1→4)-β-D-磁麻吡喃糖基-(1→4)-β-D-2-脱氧毛地黄吡喃糖苷(2)。结论:青阳参片中的C21甾体苷1和2,由一个C21甾体苷元部分和一个3-OH取代的糖链组成,7个单糖残基组成此链,糖残基为2-去氧己糖和葡萄糖,糖间的所有连接为1→4连接。Objective:To investigate the structures of compounds in Qingyangshen tablets. Methods:The acetic ether extracts from the rhizome of Cynanchum otophyllum Schneid (Asclepiadaceae) was isolated by column chromatography, and the structures of the purified compounds were determined By spectral method. Results: Two new Celsteroidal glycosides were isolated whose structures were determined as caudatin 3- O- α - L - cymaropyranosyl - (1→4) - α - D - oleandropyranosyl - (1→4) - α - L - cymaropyranosyl - (1→4) - β - D - glucopyranosyl - (1→4) - α - D- oleandropyranosyl - (1→4) - β - D- oleandropyranosyl - (1→4) - - β -D - diginopyranoside (1), and caudatin 3 - O- β - D- cymaropyranosyl - (1→4) - α - D- oleandropyranosyl - (1→4) - α - L- cymaropyranosyl - (1→4 ) - β - D - glucopyranosyl - (1 →4) - β - D - oleandropyranosyl (1→4 ) - β - D - cymaropyranosyl - (1→4) - β - D diginopyranoside (2), respectively. Conclttsion: C21 steroidal glycosides 1 and 2 in Qingyangshen tablets are composed of a C21 steroidal aglycone moiety of the 3 - OH substitution and a sugar chain. This chain consists of seven sugar residues which are 2 - deoxy - hexose and glucose. All linkages between them are 1→4.

关 键 词:青阳参 C21甾体苷 萝藦科 癫痫 迁慢性肝炎 

分 类 号:R284.2[医药卫生—中药学]

 

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