Abstract
Two new acylated triterpene saponins, named as securioside C (1), securioside D (2), and one pair of isomers 3/4, the (Z)–isomer securioside E (3) being new, together with a known triterpene saponin polygalasaponin XLIV (4) were isolated from the roots of Securidaca inappendiculata Hassk. Their structures were established by HRESIMS, 1D and 2D NMR experiments and comparison of their NMR data with previous reported data. In addition, Compounds 1–2, 3/4, 4 were evaluated for cytotoxicities against LLC (Lewis lung carcinoma) and MCF-7 (human breast cancer) cell lines. Compounds 1 and 2 exhibited moderate cytotoxic activities against LLC cells with IC50 values of 45.56μM and 85.98μM.
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