A New Prenylated Xanthone from Root Barks of Cudrania cochinchinensis  

作　　者：LIU Zhi-ping WEI Wan-xing ZHOU Min GAN Chun-fang LIU Sheng 

机构地区：[1]College of Chemistry and Chemical Engineering,Guangxi University [2]College of Chemistry and Life Science,Guangxi Teachers Education University

出　　处：《Chinese Herbal Medicines》2013年第2期101-103,共3页中草药（英文版）

基　　金：National Natural Science Foundation of China(81060261);Guangxi Natural Science Foundation(2012GXNSFAA053021);Guangxi Teachers Education University Science Research Funds(2011-4)

摘　　要：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.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.

关 键 词：Cudrania cochinchinensis isocudraniaxanthone B prenylated xanthone 1 5 6-trihydroxy-4-(1 1-dimethylallyl)-3-methoxyxanthone 1 6 7-trihydroxy-4-(1 1-dimethylallyl)-3-methoxyxanthone 

分 类 号：R284[医药卫生—中药学]