Abstract
The fresh bulbs of Lilium brownii var. colchesteri were found to contain five steroidal saponins: 26-O-beta-D-glucopyranosylnuatigenin 3-O-alpha-L-rhamnopyranosyl-(1----2)-beta-D-glucopyranoside (6), 26-O-beta-D-glucopyranosylnuatigenin 3-O-alpha-L-rhamnopyranosyl-(1----2)-O-[beta-D-glucopyranosyl-(1----4)]- beta-D-glucopyranoside (7), brownioside (8), deacylbrownioside (9) and 27-O-(3-hydroxy-3-methylglutaroyl)isonarthogenin 3-O-alpha-L-rhamnopyranosyl-(1----2)-O-[beta-D-glucopyranosyl-(1----4)- beta-D-glucopyranoside (10); and two steroidal alkaloids: beta 1-solamargine (11) and solasodine 3-O-alpha-L-rhamnopyranosyl-(1----2)-O-[beta-D-glucopyranosyl-(1----4)- beta-D-glucopyranoside (12); along with several phenolic constituents. Compounds 7, 10 and 12 are new naturally-occurring compounds.
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