cytellin and methyl-orsellinate

To isolate and identify chemical constituents from Phellodendron chinense.. Chemical constituents were isolated by silica gel and Sephadex LH-20 column chromatography. The structures of the isolated compounds were determined by spectral means.. Ten compounds were isolated and identified as berberine (1), caffeic acid ethyl ester (2), iso-vanillin (3), ferulic acid (4), (+/-)-5,5'-dimethoxylariciresinol (5), Methyl beta-orsellinate (6), gamma-fagirine (7), (+/-)-Lyoniresinol (8), beta-sitosterol (9), stigmasterine (10).. Compounds 2-6 are isolated and identified from this genus for the first time.

Topics: Berberine; Caffeic Acids; Coumaric Acids; Phellodendron; Plant Bark; Plants, Medicinal; Resorcinols; Sitosterols

To study the chemical constituents of the barks of Garcinia tetralata.. Compounds were isolated and purified repeatedly by silica gel and ODS column chromatography and their chemical structures were elucidated by their physicochemical properties and spectral data analysis.. Ten compounds were obtained and identified as 1, 7-dihydroxyxanthone (1), buchanaxanthone (2), garciniaxanthone H (3), 1, 2, 5-trihydroxyxanthone (4), subelliptenone H (5), 6-desoxyjacareubin (6), 6-deoxyisojacreubin (7), subelliptenone G (8), methyl orsellinate (9) and beta-sitosterol (10).. Compounds 1-10 were isolated from this plant and compound 9 was obtained from the genus Garcinia for the first time.

Topics: Drugs, Chinese Herbal; Garcinia; Magnetic Resonance Spectroscopy; Plant Bark; Resorcinols; Sitosterols; Spectrometry, Mass, Electrospray Ionization; Xanthones