TY - JOUR
T1 - Novel flavonoid glycosides from the bulbs of Urginea indica kunth
AU - Sultana, Nasim
AU - Akter, Kaisarun
AU - Nahar, Nilufar
AU - Khan, M. Shahinul Hoque
AU - Mosihuzzaman, M.
AU - Sohrab, Md Hossain
AU - Krohn, Karsten
PY - 2010/7
Y1 - 2010/7
N2 - Three novel flavonoid glycosides, 5,6-dimethyoxy-3′,4″- dioxymethylene-7-O-(6″-β-D-glucopyranosyl-β-D-glucopyranosyl) flavanone (1), 5,4′-dihydroxy-3-O-α-L-rhamnopyranosyl-6-C- glucopyranosyl-7-O-(6″-para-coumaroyl-β-D-glucopyranosyl) flavone (2) and 5,4′-dihydroxy-3-O-(2″‴-β-glucopyranosyl-α- L-rhamnopyranosyl)-6-C-glucopyranosyl-7-O-(6″-para-coumaroyl-β- D-glucopyranosyl) flavone (3) were isolated from the 1-butanol soluble fraction of the bulbs of the plant Urginea indica (Indian squill). The structures of the compounds were elucidated on the basis of spectral analysis, including homo- and heteronuclear correlation NMR experiments (COSY, NOESY, HSQC and HMBC) and mass spectra.
AB - Three novel flavonoid glycosides, 5,6-dimethyoxy-3′,4″- dioxymethylene-7-O-(6″-β-D-glucopyranosyl-β-D-glucopyranosyl) flavanone (1), 5,4′-dihydroxy-3-O-α-L-rhamnopyranosyl-6-C- glucopyranosyl-7-O-(6″-para-coumaroyl-β-D-glucopyranosyl) flavone (2) and 5,4′-dihydroxy-3-O-(2″‴-β-glucopyranosyl-α- L-rhamnopyranosyl)-6-C-glucopyranosyl-7-O-(6″-para-coumaroyl-β- D-glucopyranosyl) flavone (3) were isolated from the 1-butanol soluble fraction of the bulbs of the plant Urginea indica (Indian squill). The structures of the compounds were elucidated on the basis of spectral analysis, including homo- and heteronuclear correlation NMR experiments (COSY, NOESY, HSQC and HMBC) and mass spectra.
KW - Flavanone glycoside
KW - Flavone glycosides
KW - Liliaceae
KW - Urginea indica
UR - http://www.scopus.com/inward/record.url?scp=77953800584&partnerID=8YFLogxK
U2 - 10.1080/14786410902899022
DO - 10.1080/14786410902899022
M3 - Article
C2 - 20552524
AN - SCOPUS:77953800584
SN - 1478-6419
VL - 24
SP - 1018
EP - 1026
JO - Natural Product Research
JF - Natural Product Research
IS - 11
ER -