Structure Identification: |
Journal of Shenyang Pharmaceutical University, 2010,10:788-792. | Separation and identification of new sucrose esters from root of Polygala tenuifolia Willd[Reference: WebLink] | To study the constituents of the extract from the root of Polygala tenuifolia Willd. METHODS AND RESULTS: The chemical constituents were isolated by silica,Sephadex LH-20 gel column chromatography and HPLC.Chemical characters and spectroscopic analysis were employed for the structural identification. Eleven compounds were obtained and their structures were identified as sibiricose A5(1),tenuifolioside A(α-D-glucopyranoside,3-O-[(2Z)-3-(4-hydroxy-3-methoxyphenyl)-1-oxo-2-propen-1-yl]-β-D-fructofuranosyl,2),tenuifolioside B(α-D-glucopyranoside,3-O-[(2E)-3-(3,4-dimethoxyphenyl)-1-oxo-2-propen-1-yl]-β-D-fructofuranosyl,3),tenuifolioside C(α-D-glucopyranoside,3-O-[(2Z)-3-(3,4-dimethoxyphenyl)-1-oxo-2-propen-1-yl]-β-D-fructofuranosyl,4),sibiricose A6(5),glomeratose A(6),sibiricaxanthone B(7),polygalaxanthone Ⅺ(8),1,2,3,7-Tetramethoxyxanthone(9),onjixanthoneⅡ(10),and polygitol(11). CONCLUSIONS: Compounds 24,named tenuifolioside A-C respectively,are new sucrose esters which have not been reported before. |
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