New caffeoyl derivatives from the leaves of Davidia involucrata.
Three new caffeoyl galactoic acid derivatives, davidiosides A-C (1-3) together with four known caffeoyl derivatives such as: caffeic acid (4), methyl caffeate (5), chlorogenic acid (6), and methyl chlorogenate (7) were isolated from the leaves of Davidia involucrate. The new structures were determined by spectroscopic data and chemical evidence.
Ouyang
Ming-An
MA
Institute of Plant Virology, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, P.R. China. maouyang@hqu.edu.cn
Zhou
Jian-Nin
JN
Wang
Shi-Bin
SB
D002109:Caffeic Acids / Q000737:chemistry / Q000302:isolation & purification*; D005697:Galactosides / Q000737:chemistry / Q000302:isolation & purification*; D019906:Nuclear Magnetic Resonance, Biomolecular; D030701:Nyssaceae / Q000737:chemistry*; D009904:Optical Rotation; D018515:Plant Leaves / Q000737:chemistry; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013055:Spectrophotometry, Infrared
D002109:Caffeic Acids; D005697:Galactosides