Two new flavans, named (2S)-2',4'-dihydroxy-7-methoxy-8-methylflavan (1) and (2S)-2'-hydroxy-4',7-dimethoxy-8-methylflavan (2) were isolated from the roots of Dianella ensifolia. Their structures were elucidated by extensive spectroscopic measurements and comparison with data reported in literatures. Compounds 1 and 2 displayed cytotoxic effects against cancer cell lines MDA-MB-231, B16-F10, HCT116 and A549.
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Two new flavans from the roots of Dianella ensifolia (L.) DC.
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a Department of Medical Science , Shunde Polytechnic , Shunde , China.
Two new flavans, named (2S)-2',4'-dihydroxy-7-methoxy-8-methylflavan (1) and (2S)-2'-hydroxy-4',7-dimethoxy-8-methylflavan (2) were isolated from the roots of Dianella ensifolia. Their structures were elucidated by extensive spectroscopic measurements and comparison with data reported in literatures. Compounds 1 and 2 displayed cytotoxic effects against cancer cell lines MDA-MB-231, B16-F10, HCT116 and A549.
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