Bioactive xanthones from the stems of Cratoxylum formosum ssp. pruniflorum.J Nat Prod. 2010 Jul 23; 73(7):1283-7.JN
Six new compounds, pruniflorones M-R (1-6), together with 19 known compounds (7-25) were isolated from the stems of Cratoxylum formosum ssp. pruniflorum. The structures of the new compounds were established on the basis of extensive spectroscopic data interpretation. In addition, their RXRalpha transcriptional activities were evaluated using an in vitro assay.