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:姜南辉[1]
机构地区:[1]辽宁中医药大学附属医院,辽宁沈阳110032
出 处:《中药材》2015年第2期315-317,共3页Journal of Chinese Medicinal Materials
摘 要:目的:研究金银花的化学成分。方法:采用硅胶柱色谱、凝胶柱色谱、反相ODS柱色谱等多种手段进行分离纯化,通过理化性质和MS、1H-NMR和13C-NMR等谱学技术进行结构鉴定。结果:从金银花中分离得到8个化合物,分别鉴定为:原儿茶酸(1)、5-羟基-7,3',4'-三甲氧基黄酮(2)、金丝桃苷(3)、4-羟基桂皮酸(4)、咖啡酸乙酯(5)、洋芹素(6)、5-羟基-6,7,8,4'-四甲氧基黄酮(7)、月桂酸乙酯(8)。结论:其中,化合物5、7、8为首次从该属植物中分离得到。Objective : To study the chemical constituents of Lonicera japonica bud. Methods : The compounds were isolated and re- peatedly purified by silica gel column chromatography, gel column chromatography and ODS chromatography. The structures were eluci- dated by physicochemical properties, MS and NMR. Results : Eight compounds were isolated and their structures were identified as proto- catechuic acid ( 1 ) ,5-hydroxy-7,3', 4'-trimethoxyflavone ( 2), hyperoside ( 3 ) ,4-hydroxycinnamic acid (4), ethyl caffeate ( 5 ), apigenin (6) ,5-hydroxy-6,7,8,4'-tetramethoxyflavone(7 ), and ethyl laurate (8). Conclusion:Compounds 5,7 and 8 are obtained from this ge- nus for the first time.
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:216.73.216.30