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-α-L-2′′-O-acetyl-rhamnopyranoside (1), the known compounds were identified as 3-O-methylellagic acid 4′-O-α-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 also assignment the ¹³C NMR signals of 3-O-methylellagic acid 4′-O-α-L-rhamnopyranoside for the first.