Phytochemical investigation of Artemisia gmelinii Web. ex Stechm. led to the isolation of 11 known flavonoids. Their structures were identified as genkwanin（1）, hispidulin（2）, 3＇-hydroxy-genkwanin（3）, chrysoer...Phytochemical investigation of Artemisia gmelinii Web. ex Stechm. led to the isolation of 11 known flavonoids. Their structures were identified as genkwanin（1）, hispidulin（2）, 3＇-hydroxy-genkwanin（3）, chrysoeriol（4）, apigenin（5）, 5,7,3＇,4＇-tetrahydroxy-6,5＇-dimethoxy-flavone（6）, kumatakenin（7）, quercetin（8）, patuletin（9）, quercetagetin-3,6,7-trimethylether（10） and 7,3＇,4＇-trihydroxy-3-methoxy-flavone（11） by spectroscopic methods. Ten compounds（2–11） were isolated from this title plant for the first time, and five compounds（3, 6, 7, 10 and 11） were isolated from genus Artemisia for the first time.展开更多
Two new oplopane sesquiterpenes, gmelinin A（1） and gmelinin B（2）, were isolated from Artemisia gmelinii Web. ex Stechm. Their structures were established by spectroscopic techniques（mainly 1D and2 D NMR） and app...Two new oplopane sesquiterpenes, gmelinin A（1） and gmelinin B（2）, were isolated from Artemisia gmelinii Web. ex Stechm. Their structures were established by spectroscopic techniques（mainly 1D and2 D NMR） and application of the modified Mosher method.展开更多
文摘Phytochemical investigation of Artemisia gmelinii Web. ex Stechm. led to the isolation of 11 known flavonoids. Their structures were identified as genkwanin（1）, hispidulin（2）, 3＇-hydroxy-genkwanin（3）, chrysoeriol（4）, apigenin（5）, 5,7,3＇,4＇-tetrahydroxy-6,5＇-dimethoxy-flavone（6）, kumatakenin（7）, quercetin（8）, patuletin（9）, quercetagetin-3,6,7-trimethylether（10） and 7,3＇,4＇-trihydroxy-3-methoxy-flavone（11） by spectroscopic methods. Ten compounds（2–11） were isolated from this title plant for the first time, and five compounds（3, 6, 7, 10 and 11） were isolated from genus Artemisia for the first time.
文摘Two new oplopane sesquiterpenes, gmelinin A（1） and gmelinin B（2）, were isolated from Artemisia gmelinii Web. ex Stechm. Their structures were established by spectroscopic techniques（mainly 1D and2 D NMR） and application of the modified Mosher method.
