Ailanthus altissima(Mill.)Swingle is a deciduous tree belonging to the Simaroubaceae family.The root and stem bark are traditional medicines for treating many diseases,such as diarrhea,dreaminess and intestinal tract ...Ailanthus altissima(Mill.)Swingle is a deciduous tree belonging to the Simaroubaceae family.The root and stem bark are traditional medicines for treating many diseases,such as diarrhea,dreaminess and intestinal tract bleeding.Phytochemical investigation of Ailanthus altissima(Mill.)Swingle led to the isolation of eight compounds.Chemical structures of these compounds were identified by analyzing their NMR spectroscopic data.Among them,compounds 1,4,5,6 and 8 were isolated from Ailanthus Desf.for the first time.The antioxidant activities of these compounds were determined by DPPH radical scavenging method.展开更多
Bletilla striata is the traditional medicine widely used to treat a series of diseases such as bleeding,burns and tumor.The congeners have similar effect.This study reviewed the recent research progress on the chemica...Bletilla striata is the traditional medicine widely used to treat a series of diseases such as bleeding,burns and tumor.The congeners have similar effect.This study reviewed the recent research progress on the chemical components and pharmacological activities of the genus Bletilla.The review summarized over 160 compounds isolated from the plants of genus Bletilla,including phenanthrenes,diphenanthrenes,bibenzyls,flavonoids and quinones.The plants of genus Bletilla have potent bioactivities,such as hemostatic activity,effect of promoting wound healing,antitumor activity and anti-inflammatory activity.Although a lot of compounds have been isolated from the genus Bletilla,pharmacological studies have been limited to anti-inflammatory and antibacterial activities.展开更多
The twigs and leaves of Pithecellobium clypearia(Jack.)Benth are used as common Chinese traditional herbal medicine to treat upper respiratory tract infection,acute gastroenteritis and bacterial dysentery.The study is...The twigs and leaves of Pithecellobium clypearia(Jack.)Benth are used as common Chinese traditional herbal medicine to treat upper respiratory tract infection,acute gastroenteritis and bacterial dysentery.The study isolated nine compounds from the EtOAc extract,all of which were obtained from Pithecellobium Mart.for the first time.Based on 1H-NMR and 13C-NMR data,the structures of these compounds,including two ladiosiplodins and two dihydroisocoumarins,were elucidated.展开更多
文摘Ailanthus altissima(Mill.)Swingle is a deciduous tree belonging to the Simaroubaceae family.The root and stem bark are traditional medicines for treating many diseases,such as diarrhea,dreaminess and intestinal tract bleeding.Phytochemical investigation of Ailanthus altissima(Mill.)Swingle led to the isolation of eight compounds.Chemical structures of these compounds were identified by analyzing their NMR spectroscopic data.Among them,compounds 1,4,5,6 and 8 were isolated from Ailanthus Desf.for the first time.The antioxidant activities of these compounds were determined by DPPH radical scavenging method.
文摘Bletilla striata is the traditional medicine widely used to treat a series of diseases such as bleeding,burns and tumor.The congeners have similar effect.This study reviewed the recent research progress on the chemical components and pharmacological activities of the genus Bletilla.The review summarized over 160 compounds isolated from the plants of genus Bletilla,including phenanthrenes,diphenanthrenes,bibenzyls,flavonoids and quinones.The plants of genus Bletilla have potent bioactivities,such as hemostatic activity,effect of promoting wound healing,antitumor activity and anti-inflammatory activity.Although a lot of compounds have been isolated from the genus Bletilla,pharmacological studies have been limited to anti-inflammatory and antibacterial activities.
文摘The twigs and leaves of Pithecellobium clypearia(Jack.)Benth are used as common Chinese traditional herbal medicine to treat upper respiratory tract infection,acute gastroenteritis and bacterial dysentery.The study isolated nine compounds from the EtOAc extract,all of which were obtained from Pithecellobium Mart.for the first time.Based on 1H-NMR and 13C-NMR data,the structures of these compounds,including two ladiosiplodins and two dihydroisocoumarins,were elucidated.
