Two new triterpene fatty esters, 3β-tetradecanoyl moradiol 1 and 3β-dodecanoyl moradiol 2, were isolated from Scorzonera mongolica. Their structures were elucidated as 3β-tetradecanoyloxy-28-hydroxylolean-18-ene an...Two new triterpene fatty esters, 3β-tetradecanoyl moradiol 1 and 3β-dodecanoyl moradiol 2, were isolated from Scorzonera mongolica. Their structures were elucidated as 3β-tetradecanoyloxy-28-hydroxylolean-18-ene and 3β-dodecanoyl-28-hydroxyl-olean-18-ene on the basis of IR, MS, 1D NMR and extensive 2D NMR spectroscopic analyses.展开更多
Chronic eczema is a kind of skin disease which is difficult to treat.It is easy to occur repeatedly,and itching is intolerable during the attack,which seriously affects the daily life of patients.Through the review of...Chronic eczema is a kind of skin disease which is difficult to treat.It is easy to occur repeatedly,and itching is intolerable during the attack,which seriously affects the daily life of patients.Through the review of the treatment of chronic eczema with Mongolian medicine Cymbaria mongolica Maxim.,it has the advantages of improving the cure rate and the quality of life,and reducing the recurrence rate,and so on,which provides a scientific basis for the promotion and further research of traditional Mongolian medicine Cymbaria mongolica Maxim.展开更多
文摘Two new triterpene fatty esters, 3β-tetradecanoyl moradiol 1 and 3β-dodecanoyl moradiol 2, were isolated from Scorzonera mongolica. Their structures were elucidated as 3β-tetradecanoyloxy-28-hydroxylolean-18-ene and 3β-dodecanoyl-28-hydroxyl-olean-18-ene on the basis of IR, MS, 1D NMR and extensive 2D NMR spectroscopic analyses.
文摘Chronic eczema is a kind of skin disease which is difficult to treat.It is easy to occur repeatedly,and itching is intolerable during the attack,which seriously affects the daily life of patients.Through the review of the treatment of chronic eczema with Mongolian medicine Cymbaria mongolica Maxim.,it has the advantages of improving the cure rate and the quality of life,and reducing the recurrence rate,and so on,which provides a scientific basis for the promotion and further research of traditional Mongolian medicine Cymbaria mongolica Maxim.
文摘对珍稀濒危植物蒙古扁桃进行组织培养获得再生植株。实验结果表明 ,在 MS培养基上蒙古扁桃幼苗茎尖、茎切段和叶片等外植体均可以脱分化形成愈伤组织 ,并进一步分化形成再生植株。器官的脱分化与再分化决定于培养基中的激素种类及其浓度。诱导愈伤组织形成的最适培养基为 MS+6- BA 0 .8mg/ L +NAA 0 .1 mg/ L ,芽分化诱导最适培养基为 MS+6- BA 0 .8mg/ L ,诱导生根的最适培养基是 MS+IBA 0 .5 mg/
