短萼仪花叶化学成分研究

Studies on chemical constituents from leaves of Lysidice brevicalyx

目的：研究短萼仪花叶的化学成分。方法：利用正相和反相硅胶，Sephadex LH-20，HPLC等色谱技术分离纯化，通过现代谱学方法及其理化性质鉴定其化学结构。结果：从短萼仪花叶乙醇提取物的醋酸乙酯部分分离并鉴定了7个化合物，其结构分别鉴定为2-O-[1-（3-甲基丁酰基）间苯三酚]-β-D-吡喃葡萄糖苷（1），3-β-D-吡喃葡萄糖氧基-4，5-二甲氧基-苯甲酸（2），苯甲醇O-β-D-吡喃葡萄糖苷（3），虎杖苷（4），槲皮素-3-O-α-L-吡喃鼠李糖苷（5），没食子酸乙酯（6），苯甲醇O-（6-β-O-α-L-呋喃阿拉伯糖基）-β-D-吡喃葡萄糖苷（7）。结论：以上化合物均为从该植物中首次获得，其中化合物2，3，5—7为首次从仪花属植物中分离得到。

Objective： To study the chemical constituents of Lysidice brevicalyx. Method： Various chromatographic techniques were used to isolate and purify the constituents such as column chromatography on silica gel, Rp-silica gel, Sephadex LH -2O and HPLC. The structures were elucidated by chemical evidence and spectroscopic methods. Result： Seven compounds were isolated from the 95% ethanol extract of the leaves of L. brevicalyx and these compounds were elucidated as 2-O-[ 1-（3-methylbutyryl） phloroglucinol] -β-D-glucopynanoside （ 1 ）, 3-β-D-glucopyranosyloxy-4, 5-dimethoxy-benzoic acid （2）, benzyl alcohol O-β-D-glucopyra noside （3）, polydatin （4）, quercetin-3-α-L-rhamnopyranoside （5）, ethyl gallate （6）, benzyl 6-O-α-L-arabinofurano syl-β-D-glucopynanoside （7）. Conclusion： All Compounds were isolated from this plant for the first time. Compounds 2, 3, 5-7 were obtained from this genus for the first time.