期刊
ORGANIC & BIOMOLECULAR CHEMISTRY
卷 14, 期 37, 页码 8821-8831出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ob01622g
关键词
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资金
- National Basic Research Program of China (973 Program) [2012CB822100]
- National Key Technology R&D Program New Drug Innovation of China [2012ZX09502001-001]
- National Natural Science Foundation of China (NSFC) [21232002]
- National Research Foundation for the Doctoral Program of Higher Education of China [20130001110058]
- National Research Center for Carbohydrate Synthesis, Jiangxi Normal University
Total synthesis of mangiferin, homomangiferin, and neomangiferin, three C-glycosyl xanthone natural products with a wide spectrum of pharmacological effects, has been achieved starting from 2,3,4,6-tetra-O-benzyl-alpha/beta-D-glucopyranose. The key steps involve a stereoselective Lewis acid promoted C-glycosylation of protected phloroglucinol with tetrabenzylglucopyranosyl acetate and a highly regio-selective base-induced cyclization for the construction of the core xanthone skeleton.
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