A new Flavanone Glycoside from leaves of Impatiens balsamina. | [Journal of Chemical Society of Pakistan • 2004]

Author(s):

1. A. Hasan: Department of Chem, Quaid-e-Azam University, Islamabad, Pakistan

2. M. N. Tahir: Department of Chem, Quaid-e-Azam University, Islamabad, Pakistan

3. A. Malik: HEJ Research Institute of Chemistry, University of Karachi, Karachi, Pakistan

4. C. A. Sharif: HEJ Research Institute of Chemistry, University of Karachi, Karachi, Pakistan

5. M. A. Khan: Department Biol. Sci, Quaid-i-Azam University, Islamabad, Pakistan

Abstract:

A new flavanone glycoside, naringenin-4 -0-(3-D-glucuronopyranoside (1) was` isolated from leaves of Impatients balsamina together with a known but rare flavanone monoglycoside: naringenin -4 -0-p-D-glucuronopyranoside (2), four rare flavonol diglycosides: quercetin 3-O-a-L-rhamnopyranosyl (1-6)3-D-galactopyranoside (3), kaempferol3-O-a-L-rhamnopyranosyl -7-O-a-Larabinopyranoside (4), quercetin-3-O- (3-D-xylopyranosyl (1-6) -(3-Dglucopyranoside (5), quercetion-3-O-a-L-arabinopyranosyl (1-2)-(3-Dglucuronopyranoside (6) and three flavonol monogycosides kaempferol-3-Oa-L-rhamnopryranoside (7), Kaempferol-7-O-(3-D-allopyranoside (8) and quercetin-3-O-p-D-glucopyranoside (9). Their structures were determined by means of co-chromatography, UV, EI-MS, FAB-MS and HNMR spectroscopy.

Page(s): 167-170

DOI: DOI not available

Published: Journal: Journal of Chemical Society of Pakistan, Volume: 26, Issue: 2, Year: 2004

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