ligularia knorringiana/抗菌的

OBJECTIVE The objective of this research was to investigate the chemical composition and antibacterial activities of the fatty acids and essential oil from various parts of Ligularia persica Boiss (L. persica) growing wild in north of Iran. METHODS Essential oils were extracted by using

Essential oils are volatile compounds extracted from various plants by distillation, hydrodiffusion or compression. In recent years, the use of essential oils has gained popularity. Many pharmaceutical, cosmetic, sanitary, food industry and agriculture studies have revealed that essential oils exert

Phytochemical investigation of Ligularia songarica (Compositae) afforded seven new bisabolane-type sesquiterpenes. Their structures were confirmed on the basis of spectroscopic methods, especially 2D-NMR techniques, and compound 7 showed stronger antibacterial activity against Escherichia coli,

Two new benzofurans, 2-(1,2-dihydroxyisopropyl)-5,6-dimethoxybenzofuran (1) and 2-(1-O-feruloyl-2-hydroxyisopropyl)-5,6-dimethoxybenzofuran (2), along with eleven known compounds (3-13) were isolated from the roots of Ligularia przewalskii. Their structures were established on the basis of

Three new polymeric isopropenyl benzofurans, 4-methyl-2,4-bis(5,6-dimethoxy-2-benzofuranyl)-1-pentene, stenocephalin A (1), 4,6-dimethyl-2,4,6-tri(5,6-dimethoxy-2-benzofuranyl)-1-heptene, stenocephalin B (2) and 4,6,8-trimethyl-2,4,6,8-tetra(5,6-dimethoxy-2-benzofuranyl)-1-nonene, stenocephalin C

Chemical investigation of the roots of Ligularia sagitta has resulted in the characterization of six eremophilenolides 6beta,8beta-dimethoxy-10beta-hydroxyeremophil-7(11)-en-12,8alpha-olide (1), 6beta-angeloyloxy-10beta-hydroxy-8beta-methoxyeremophil-7(11)-en-12,8alpha-olide (2),

BACKGROUND Ligularia przewalskii (Maxim.) Diels (LP) (called zhangyetuowu in Chinese), is generally found in moist forest areas in the western regions of China. The root, leaves and flower of LP are utilized as a common traditional medicine in China. It has been utilized conventionally in herbal

Five new highly oxygenated eremophilane-type sesquiterpenoids, possessing C19 (1 and 2), C15 (3 and 4), and C14 (8) skeletons, along with eight known eremophilenolides were obtained from the aerial parts of Ligularia sagitta. The absolute configuration of 1 was assigned by X-ray diffraction analysis