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信宜润楠中的黄酮类成分

Keywords: 润楠属,信宜润楠,黄酮类,分离和结构鉴定

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Abstract:

通过大孔吸附树脂、正相硅胶、SephadexLH-20柱色谱,以及反相闪式柱色谱和HPLC等多种分离方法相结合,从信宜润楠95%乙醇提物中首次分离得到12个黄酮类化合物;借助红外、质谱和核磁共振等波谱学分析方法分别鉴定为(+)-儿茶素(1)、(-)-表儿茶素(2)、3’-甲氧基-(+)-儿茶素(3)、3’-甲氧基-(-)-表儿茶素(4)、3,5,7,2’,5’-五羟基黄烷(5)、(-)-柚皮素(6)、(-)-圣草酚(7)、(-)-甘草素(8)、(2R,3R)-(+)-二氢山柰酚(9)、(2R,3S)-(-)-二氢山柰酚(10)、(2R,3R)-(+)-紫杉叶素(11)和槲皮素(12);其中,化合物1~10为首次从润楠属植物中分离得到。

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