检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:张兴锋 朱功俊 龚韦凡 刘向明[1,2] 桂鹏 ZHANG Xing-feng;ZHU Gong-jun;GONG Wei-fan;LIU Xiang-ming;GUI Peng(College of Pharmacy,South-Central University for Nationalities,Hubei Wuhan 430074;GongQing Institute of Science and Technology,Jiangxi Gongqingcheng 332020,China)
机构地区:[1]中南民族大学药学院,湖北武汉430074 [2]共青科技职业学院,江西共青城332020
出 处:《广州化工》2020年第9期92-95,共4页GuangZhou Chemical Industry
摘 要:为了解龙血竭中主成分(黄酮类化合物)的化学组成,通过碱溶酸沉初步提取,聚酰胺柱层析、硅胶柱层析和高效液相色谱对龙血竭进一步分离,借助波谱分析手段对分离出的化合物结构进行鉴定。共分离得11个黄酮类成分,其结构分别为:7-羟基黄酮(1),5,7,4-三羟基-8-甲基黄酮(2),5,7,4-三羟基黄酮(3),2,4-二羟基-4,6-二甲氧基二氢查尔酮(4),2,4,4-三羟基-6-甲氧基二氢查尔酮(5),4,4-二羟基-2-甲氧基二氢查尔酮(6),4-羟基-2,4-二甲氧基二氢查尔酮(7),7-羟基-4-甲氧基黄烷(8),7,4-二羟基-5-甲氧基高异黄烷(9),7,4-二羟基-6-甲氧基高异黄烷(10),7,4-二羟基高异黄烷(11)。The flavonoids were extracted roughly by the method of alkali-soluble acid precipitation,and then polyamide column chromatography,silica gel column chromatography and high-performance liquid chromatography were used to further separate it.The structure of the separated compounds was identified based on spectral analysis method for understanding the chemical composition of the main components(flavonoids)in Resina draconis.A total of 11 flavonoids were separated and their structures were:7-hydroxyflavonoids(1),5,7,4’-trihydroxy-8-methylflavonoids(2),5,7,4’-trihydroxyflavonoids(3),2,4’-dihydroxy-4,6-dimethoxydihydrochal-cone(4),2,4,4’-trihydroxy-6-methoxydihydrochalcone(5),4,4’-dihydroxy-2-methoxydihydroc-halcone(6),4-hydroxy-2,4’-dimethoxydihydrochalcone(7),4’-methoxy-7-methoxyflavane(8),7,4’-dihydroxy-5-methoxyhomoisoflavane(9),7,4’-dihydroxy-6-methoxyhomoisoflavane(10),7,4’-dihydroxyhomoisoflavane(11).
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.112