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Isolation and characterization of new limonoid glycosides from Citrus unshiu peels
1Institute for Comprehensive Agricultural Sciences, Kinki University, Nara, Japan.
Carbohydrate Research
|July 1, 1999
Abstract:
Three limonoid glycosides were isolated from Citrus unshiu peels, and their structures were determined based on MS and NMR spectroscopic data as nomilinic acid 17-O-beta-D-glucopyranoside (1), methyl nomilinate 17-O-beta-D-glucopyranoside (2), and obacunone 17-O-beta-D-glucopyranoside (3). In particular, the location of the sugar moiety was clearly determined by the B/E constant linked scan FABMS method. No limonoid glycosides obtained here were found to have antitumor activity in NCI-H292 and EL-4 cell lines.