A new ellagic acid derivative from the fruits of Eucalyptus globulus Labill.
Four ellagic acid derivatives have been isolated from the fruits of Eucalyptus globulus Labill., one of which is new compound, identified as 3-O-methylellagic acid 4'-O-alpha-L-2"-O-acetyl-rhamnopyranoside (1), the known compounds were identified as 3-O-methylellagic acid 4'-O-alpha-L-rhamnopyranoside (2), ellagic acid (3) and 3-O-methylellagic acid (4), on the basis of the analysis of 1H NMR, 13C NMR, HSQC, HMBC, IR and MS spectral data. It is alsoassignment the 13C NMR signals of 3-O-methylellagic acid 4'-O-alpha-L-rhamnopyranoside for the first.
Guo
Qing-Mei
QM
State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, and Medical and Healthy Analysis Center, Peking University, Beijing, China.
Yang
Xiu-Wei
XW
D004610:Ellagic Acid / Q000031:analogs & derivatives* / Q000737:chemistry* / Q000302:isolation & purification; D005052:Eucalyptus / Q000737:chemistry*; D005638:Fruit / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D009005:Monosaccharides / Q000737:chemistry* / Q000302:isolation & purification; D010936:Plant Extracts / Q000032:analysis; D013055:Spectrophotometry, Infrared; D017550:Spectroscopy, Fourier Transform Infrared
C505645:3-O-methylellagic acid 4'-O-alpha-L-2''-O-acetyl-rhamnopyranoside; D009005:Monosaccharides; D010936:Plant Extracts; D004610:Ellagic Acid