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[A new flavonoid glycoside from the roots and stems of Sphaerophysa salsula]
Bai-Ling Hou1, Zhan-Lin Li, Xian Li
1School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China. proflixian@163.com
Aim:
To study the chemical constituents of Sphaerophysa salsula (Pall.) DC.
Methods:
Compounds were isolated by repeated chromatography, on silica gel and Sephadex LH-20 columns and identified by spectroscopic data (ESI-MS, 1H and 13C NMR, HSQC, HMBC).
Results:
Eight compounds have been isolated and identified as: isorhamnetin-3-O-[6"-(3-hydroxy-3-methylglutaroyl)-beta-D-glucopyranoside] (I), quercitrin (II), n-butyl-O-beta-D-fructopyranoside (III), nicotinic acid (IV), succinic acid (V), erythrol (VI), D-mannitol (VII), uridine (VIII).
Conclusion:
Compound I is a new compound. Compounds I -VI were isolated from this genus for the first time.
