The non-volatile constituents of the rare species Viola etrusca Erben (Violaceae), collected at Mount Amiata, Italy, were phytochemically investigated for the first time. Two new flavonoid glycosides, 4'-methoxyrhamnetin (1) and violetruscoside (2), an isorhamnetin derivative, were isolated from the flowering aerial parts, together with eleven known substances, including eight flavonoids, a phenolic acid, glycerin, and a coumarin derivative. The NMR data of violanthin (10) and isoviolanthin (11) are reported for the first time
Autori interni: | |
Autori: | FLAMINI G |
Titolo: | Flavonoids and Other Compounds from the Aerial Parts of Viola etrusca |
Anno del prodotto: | 2007 |
Digital Object Identifier (DOI): | 10.1002/cbdv.200790018 |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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