[Chemical Constituents from Cynomorium songaricum].

Objective: To study the chemical constituents from the fleshy stems of Cynomorium songaricum. Methods: The chemical constituents were isolated and purified by chromatography on MCI, silica gel, Sephadex LH-20 columns, etc. The structures of compounds were elucidated by physicochemical property and spectral analyses. Results: 15 compounds were isolated and identified as choerospondin( 1), isolariciresinol-4-O-β-D-glucopyranoside( 2), lutelin-7-O-β-D-glucopyranoside( 3), 3, 4-dihydroxyphenethylacetate( 4),maslinic acid( 5),catechin ( 6),ursolic acid( 7),gentisic acid( 8),mannitol( 9), phloroglucinol( 10), β-sitosterol( 11), daucosterol( 12), rutin( 13), cetylic acid( 14) and epicatechin( 15). Conclusion: Compounds 4,5,8,9 and 10 are obtained from this plant for the first time.