Two new xanthones from the pericarp of <i>Garcinia mangostana</i> Xiaojun Zhou Luan He Xinxing Wu Yanxia Zhong Juan Zhang Yuanxing Wang Bin Wang Zhifang Xu Shengxiang Qiu 10.6084/m9.figshare.1198485.v2 https://tandf.figshare.com/articles/journal_contribution/Two_new_xanthones_from_the_pericarp_of_i_Garcinia_mangostana_i_/1198485 <div><p>Two new xanthones, designated garcimangosxanthone F (<b>1</b>) and garcimangosxanthone G (<b>2</b>), were isolated from the EtOAc-soluble fraction of ethanolic extract from the pericarp of <i>Garcinia mangostana</i>. Their structures were established as 1,6,7-trihydroxy-5-(3-methylbut-2-enyl)-8-(3-hydroxy-3-methylbutyl)-6′,6′-dimethylpyrano[2′,3′:3,2]xanthone and 1,6,7-trihydroxy-5-(3-methylbut-2-enyl)-8-(3-hydroxy-3-methylbutyl)-6′,6′-dimethyl-4′,5′-dihydropyrano[2′,3′:3,2]xanthone, respectively, on the basis of their 1D, 2D NMR and MS data interpretation.</p></div> 2014-10-30 11:54:38 Garcinia mangostana garcimangosxanthone basis fraction pericarp trihydroxy xanthone MS data interpretation ethanolic 2 D NMR