Further phytochemical investigation of the ethyl acetate extract of the stem of Daphniphyllum oldhamii afforded a new phenolic glucoside, named oldhamioside 1, together with eleven known compounds, koaburaside 2, betu...Further phytochemical investigation of the ethyl acetate extract of the stem of Daphniphyllum oldhamii afforded a new phenolic glucoside, named oldhamioside 1, together with eleven known compounds, koaburaside 2, betulin, 28-hydroxyl-3-lupenone, pineresinol, syringaresinol, 4-O-methyl- cedrusin, narigenin, eriodictyol, apigenin, loureirin C, and asperuloside. The structures of new and known compounds were characterized by detailed spectroscopic analysis and comparison of their spectral data with reported values.展开更多
A novel phenolic glucoside was isolated from stem barks of Alangium plantanifolium, its structure was elucidated to be 1-O-[2-(1-hydroxy-6-oxocyclohex-2-ene-1-carboxymethyl) -phenyl]-4, 6-O-[(S)-4, 4', 5, 5', ...A novel phenolic glucoside was isolated from stem barks of Alangium plantanifolium, its structure was elucidated to be 1-O-[2-(1-hydroxy-6-oxocyclohex-2-ene-1-carboxymethyl) -phenyl]-4, 6-O-[(S)-4, 4', 5, 5', 6, 6'-hexahydroxydi-phenoyl]-beta -D-glucopyranose 1 by spectroscopic methods including 2D NMR techniques.展开更多
Two new triterpenoid saponins,cincholic acid-3- O - β - D -xylopyranoside,28- O - β - D -glucopyranosyl ester (1),quinovic acid-28- O - β - D -glucopyranosyl ester (4),and a new phenolic glucoside,4-[4'- O -( 2...Two new triterpenoid saponins,cincholic acid-3- O - β - D -xylopyranoside,28- O - β - D -glucopyranosyl ester (1),quinovic acid-28- O - β - D -glucopyranosyl ester (4),and a new phenolic glucoside,4-[4'- O -( 2',3',5',6'-tetrahydroxy phenyl)- β - D -glucoside]-1-butene (2),along with five known triterpenoid saponins and one phenolic glucoside were isolated from the n -butanol fraction of the stems of Luculia pinciana Hook. Their structures were established by means of spectroscopic methods.展开更多
A new Lycopodium alkaloid together with a phenolic glycoside—arbutin, were isolated from the whole plant of Huperzia serrata. The new compound was assigned the trivial name of huperzine I. The structures of these two...A new Lycopodium alkaloid together with a phenolic glycoside—arbutin, were isolated from the whole plant of Huperzia serrata. The new compound was assigned the trivial name of huperzine I. The structures of these two compounds were determined on the basis of spectral evidence.展开更多
文摘Further phytochemical investigation of the ethyl acetate extract of the stem of Daphniphyllum oldhamii afforded a new phenolic glucoside, named oldhamioside 1, together with eleven known compounds, koaburaside 2, betulin, 28-hydroxyl-3-lupenone, pineresinol, syringaresinol, 4-O-methyl- cedrusin, narigenin, eriodictyol, apigenin, loureirin C, and asperuloside. The structures of new and known compounds were characterized by detailed spectroscopic analysis and comparison of their spectral data with reported values.
文摘A novel phenolic glucoside was isolated from stem barks of Alangium plantanifolium, its structure was elucidated to be 1-O-[2-(1-hydroxy-6-oxocyclohex-2-ene-1-carboxymethyl) -phenyl]-4, 6-O-[(S)-4, 4', 5, 5', 6, 6'-hexahydroxydi-phenoyl]-beta -D-glucopyranose 1 by spectroscopic methods including 2D NMR techniques.
文摘Two new triterpenoid saponins,cincholic acid-3- O - β - D -xylopyranoside,28- O - β - D -glucopyranosyl ester (1),quinovic acid-28- O - β - D -glucopyranosyl ester (4),and a new phenolic glucoside,4-[4'- O -( 2',3',5',6'-tetrahydroxy phenyl)- β - D -glucoside]-1-butene (2),along with five known triterpenoid saponins and one phenolic glucoside were isolated from the n -butanol fraction of the stems of Luculia pinciana Hook. Their structures were established by means of spectroscopic methods.
文摘A new Lycopodium alkaloid together with a phenolic glycoside—arbutin, were isolated from the whole plant of Huperzia serrata. The new compound was assigned the trivial name of huperzine I. The structures of these two compounds were determined on the basis of spectral evidence.
