异甘草素
皮诺森布林
高良姜素
石油醚
化学
柱色谱法
黄烷酮
硅胶
传统医学
甘草苷元
查尔酮
色谱法
立体化学
类黄酮
有机化学
山奈酚
抗氧化剂
替代医学
病理
医学
萃取(化学)
摘要
AIM To investigate the chemical constituents of Premna yunnanensis W.W.Smith collected from Yunnan province,China.METHODS Air-dried and powdered aerial parts of Premna yunnanensis W.W.Smith.were percolated with 95% EtOH to give residue,and the residue was suspended in water and partitioned with petroleum ether and EtOAc,respectively.The EtOAc fraction was subjected to silica gel column chromatography and RP-18 column chromatography,and the structures of the isolated compounds were elucidated by spectral data.RESULTS Ten compounds were isolated from Premna yunnanensis W.W.Smith.on the basis of spectral data,they were identified as 7-hydroxy flavanone(1),pinocembrin(2),pinostrobin(3),3-methoxy galangin(4),3,7-dimethoxy galangin(5),quercetin 3-O-β-D-lyxosopyranoside(6),2′,4′-dimethoxy chalcone(7),isoliquiritigenin(8),4-methoxy isoliquiritigenin(9),cardamonin(10).CONCLUSION Compounds 1-10 are isolated from Premna yunnanensis W.W.Smith for the first time.
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