Flavonoids from the Aerial Part of Picris koreana

The flavonoids isoetin-2 ′-O-α-L-arabinopyranoside (1), isoetin-2 ′-O-β-D-galactopyranoside (2), isoetin-2 ′-O-(6′′-O-acetyl)-β-D-galactopyranoside (3), and luteolin-4 ′-O-β-D-glucopyranoside (4), which were identified using NMR spectroscopic methods, were isolated for the first time from the aerial part ofPicris koreana (Kitam.) Vorosch. growing in Primorsky Krai of the Russian Far East. Flavonoids2 and3 were new compounds that were previously unreported in the literature.
Source: Chemistry of Natural Compounds - Category: Chemistry Source Type: research