保元汤中黄酮类成分的分离和结构鉴定

Isolation and identification of flavonoids from Baoyuan Decoction

目的对中药复方保元汤中的化学成分进行研究。方法用多种色谱和光谱方法对保元汤中的化学成分进行分离和结构鉴定。结果从保元汤水提物中分离得到15个黄酮类化合物,分别是异甘草素-葡萄糖-芹糖苷(1)、芒柄花苷(2)、芒柄花素(3)、异短尖剑豆酚(4)、达维荚迷苷元(5)、2′,4′-二甲氧基-3′-羟基异黄烷-6-O-β-D-葡萄糖苷(6)、(6aR,11aR)9,10-二甲氧基紫檀烷-3-O-β-D-葡萄糖苷(7)、大萼赝靛素(毛蕊异黄酮,8)、甘草素(9)、5-去羟山柰素(10)、甘草苷(11)、异甘草苷(12)、异甘草素(13)、7,3′-二羟基-5′-甲氧基异黄酮(14)、降香黄烃(odorifla-vene,15)。结论以上化合物均为首次从保元汤中分离得到。

Objective To investigate the chemical constituents of Baoyuan Decoction. Methods Many chromatographic techniques and spectral analysis means were employed for isolation and identification of the constituents. Results Fifteen flavonoids were isolated from Baoyuan Decoction and their structures were identified as licuraside （1）, formononetin-7-O-β-D-glucoside（2）,formononetin （3）, isomucronulatol （4）, davidigenin （5）, 2′, 4′-dimethoxy-3′-hydroxyisoflavan-6-O-β-D-glucoside （6）, （6aR, 11aR） 9, 10dimethoxypterocarpan-3-O-β-D-glucoside （7）,calycosin （8）,liquiritigenin （9）, 5-dehydroxykaempferol （10）, liquiritin （11）, isoliquiritin （12）, isoliquiritigenin （13）, 7, 3′-dihydroxy-5′-methoxyisoflavone （14）, and odoriflavene （15）. Conclusion All fifteen compounds are isolated from Baoyuan Decoction for the first time.