A New Prenylated Xanthone from Root Barks of Cudrania cochinchinensis
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Abstract:
Objective To study the chemical constituents from the root barks of Cudrania cochinchinensis. Methods The chemical constituents were isolated and purified by silica gel column chromatography. The structures of the compounds were identified on the basis of spectral data (MS, 1H-NMR, 13C-NMR, and 2D NMR) and by the comparison of spectroscopic data with the reported values in the literatures. Results A new xanthone, 1,6,7-trihydroxy-4-(1,1- dimethylallyl)-3-methoxyxanthone (1) and a known prenylated xanthone 1,5,6-trihydroxy-4-(1,1-dimethylallyl)-3- methoxyxanthone (isocudraniaxanthone B, 2) were isolated from the root barks of C. cochinchinensis. Conclusion Compound 1 is a new prenylated xanthone. Isomers 1 and 2 are obtained from this plant for the first time.
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National Natural Science Foundation of China (81060261); Guangxi Natural Science Foundation (2012GXNSFAA053021); Guangxi Teachers Education University Science Research Funds (2011-4)
LIU Zhi-ping, WEI Wan-xing, ZHOU Min, GAN Chun-fang, LIU Sheng. A New Prenylated Xanthone from Root Barks of Cudrania cochinchinensis[J]. Chinese Herbal Medicines (CHM),2013,5(2):101-103
