The structures of three novel saponins from Argania spinosa, named arganines G, H, and J, have been elucidated by MS and NMR techniques as 3-O-beta-D-apiofuranosyl- (1-->4)-beta-D-glucopyranosyl-28-O-beta-D-glucopyranosylbayogenin (1), 3-O-beta-D-apiofuranosyl-(1-->4)-beta-D-glucopyranosyl-28-O-alpha- L- arabinopyranosylbayogenin (2), and 3-O-beta-D-apiofuranosyl-(1-->4)-beta-D-glucopyranosyl-28-O- [beta-D-apiofuranosyl-(1-->3)-beta-D-xylopyranosyl-(1-->4)-alpha-L - rhamnopyranosyl-(1-->2)-alpha-L-arabinopyranosyl]bayogenin (3), respectively.
The constituents were quantified by the percentage weight of the crude products. The sesquiterpenes (0.07%) and tnterpenes (0.1 %) were identified by GC-MS. Chalcone flavokawin B (1) and 5,6-dehydrokawain (3) were isolated from both species. Flavokawin B (1) has been found to be the major component of A. rafflesiana (0.6 g, 0.2%) whereas 5,6-dehydrokawain (3) constitutes (TLC analysis) the major component of A. mutica (1.1 g, 0.37%) which have been previously
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.