An investigation of the extracts from Allium neapolitanum has led to the isolation of 13 flavonoid glycosides, based on kaempferol, quercetin and isorhamnetin. Four of them are new compounds and have been identified as: kaempferol 3-O-{[2-O-α-L-rhamnopyranosyl-4-O-β-D-glucopyranosyl]-β-D- glucopyranoside}, isorhamnetin 3-O-{[2-O-α-L-rhamnopyranosyl-6-O-β-D- glucopyranosyl]-β-D-glucopyranoside}, isorhamnetin 3-O-{[2-O-α-L- rhamnopyranosyl-6-O-β-D-glucopyranosyl]-β-D-glucopyranoside}-7-O-β-D- glucopyranoside and isorhamnetin 3-O-{[2-O-α-L-rhamnopyranosyl-6-O-β-D- gentiobiosyl]-β-D-glucopyranoside}. The isolated compounds were evaluated for their anti-aggregation human platelet activity.
The flavonoids of Allium Neapolitanum / Carotenuto, Alfonso; Fattorusso, E; Lanzotti, V; Magno, S; DE FEO, V; Cicala, Carla. - In: PHYTOCHEMISTRY. - ISSN 0031-9422. - STAMPA. - 44:5(1997), pp. 949-957. [10.1016/S0031-9422(96)00663-2]
The flavonoids of Allium Neapolitanum.
CAROTENUTO, ALFONSOPrimo
;LANZOTTI V;CICALA, CARLA
1997
Abstract
An investigation of the extracts from Allium neapolitanum has led to the isolation of 13 flavonoid glycosides, based on kaempferol, quercetin and isorhamnetin. Four of them are new compounds and have been identified as: kaempferol 3-O-{[2-O-α-L-rhamnopyranosyl-4-O-β-D-glucopyranosyl]-β-D- glucopyranoside}, isorhamnetin 3-O-{[2-O-α-L-rhamnopyranosyl-6-O-β-D- glucopyranosyl]-β-D-glucopyranoside}, isorhamnetin 3-O-{[2-O-α-L- rhamnopyranosyl-6-O-β-D-glucopyranosyl]-β-D-glucopyranoside}-7-O-β-D- glucopyranoside and isorhamnetin 3-O-{[2-O-α-L-rhamnopyranosyl-6-O-β-D- gentiobiosyl]-β-D-glucopyranoside}. The isolated compounds were evaluated for their anti-aggregation human platelet activity.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
