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Saponins from roots of Securidaca inappendiculata with cytotoxic activities



Saponins from roots of Securidaca inappendiculata with cytotoxic activities



Zhongguo Zhong Yao Za Zhi 40(14): 2849-2853



Seven acylated triterpene saponins were isolated from the roots of Securidaca inappendiculata by means of various chromatographic techniques such as silica gel, MPLC, preparative HPLC, and semi-preparative HPLC. Their chemical structures were identified as securioside A(1), securioside B(2), 3-O-β-D-glucopyranosyl presenegenin 28-O-β-D-xylopyranosyl-(1-->4)-α-L-rhamnopyranosyl-(1-->2)-[β-D-glucopyranosyl-(1-->3)]-4-O-[(E)-3,4-dimethoxycinnamoyl]-β-D-fucopyranosyl ester(3), 3-O-β-D-glucopyranosyl presenegenin 28-O-β-D-xylopyranosyl-(1-->4)-α-L-rhamnopyranosyl-(1-->2)-[β-D-glucopyranosyl-(1-->3) ] -4-O-[(E/Z)-3, 4-dimethoxycinnamoyl]-β-D-fucopyranosyl ester(3/4), 3-O-β-D-glucopyranosyl presenegenin 28-O-α-L-arabinopyranosyl-(1-->3)-β-D-xylopyranosyl-(1-->4)-α-L-rhamnopyranosyl-(1-->2)-4-O-[(E)-3,4-dimethoxycinnamoyl]-β-D-fucopyranosyl ester(5), polygalasa- ponin XLV(6), and polygalasaponin XLVI (7) on the basis of spectroscopic data analysis and physicochemical properties. Among them, compounds 5-7 were isolated from the plants in genus Securidaca for the first time and compounds 3, 3/4 were isolated from the species for the first time. The cytotoxicity assay showed that compounds 2, 3/4, 5 have moderate cytotoxic activities against Lewis lung carcinoma LLC cells with IC50 values of 41.10, 38.17, and 48.92 µmol · L(-1), respectively; compound 2 exhibited moderate cytotoxic activities against human breast cancer MCF-7 cells with an IC50 value of 47.93 µmol · L(-1).

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Accession: 058806719

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PMID: 26666038


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