Natural Product Research 2017-Jan
A new sesquiterpene lactone from yacon leaves.
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The chemical constituents of 60% EtOH extract of yacon leaves were separated to yield a new compound, together with four known compounds, which were isolated for the first time from yacon. The new compound was characterised and named as chlorodalin (1) on the basis of NMR (1D and 2D), HR-MS and other spectral methods. The cytotoxic activities of 1-5 were evaluated on two human tumour cell lines and the new compound showed significant cytotoxic activity.
