Celtisanin, a novel sulphonated phenolic from Celtis australis L. fruits

@article{Badoni2010CeltisaninAN,
  title={Celtisanin, a novel sulphonated phenolic from Celtis australis L. fruits},
  author={R. Badoni and D. Semwal and U. Rawat and Gur Jas Preet Singh},
  journal={Natural Product Research},
  year={2010},
  volume={24},
  pages={1282 - 1286}
}
A novel sulphonated phenolic named celtisanin (1), elucidated as 3-[8′-hydroxy-prop-6′-ene-6′-yl]-5-hydroxymethyl-4-methoxy-2-[penta-1′,4′-diene-1′-yl-5′-sulphonic acid]-5,6-dihydrobenzofuran, has been isolated from the fruits of Celtis australis (Ulmaceae), together with three known compounds: apigenin, quercetin and its glucoside. Their structures were characterised by means of chemical and spectral methods, including advanced 2-D nuclear magnetic resonance (NMR) studies. 
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