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A new disaccharoside (2) together with a known disaccharose (1) was isolated from the ethanol extract of Camptosorus sibiricus Rupr. By means of chemical (hydrolysis) and spectroscopic methods (IR, 1D and 2D NMR, ESI-MS), the structures were established as β-D-glucopyranosyl (1 → 2)-β-D-glucopyranoside (1) and Octane-1-en-3-ol-3-O-β-D-glucopyranosyl (1 → 2)-β-D-glucopyranoside (2) respectively. Compounds 1 and 2 were isolated from this genus first and their anti-tumour activities were tested against two human tumour cell lines using MTT method. [ABSTRACT FROM AUTHOR]

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.