在 20 % Pd(Oh)2/c,氢气体系中,用 四氢呋喃,乙醇 用作溶剂,化学反应 12.0H,以16 Mg的收率获得2-(3,4二羟基苯基)-5,7-二羟基-4-氧代-4H-1-苯并吡喃-3-基-Beta-D-吡喃葡糖苷酸 参考文献:Regiospecific Synthesis Of Quercetin O-β-D-Glucosylated And O-β-D-Glucuronidated Isomers 标题:Regiospecific Synthesis Of Quercetin O-β-D-Glucosylated And O-β-D-Glucuronidated Isomers 摘要:Quercetin,The Polyphenolic Compound,Which Has The Highest Daily Intake,Is Well Known For Its Protective Effects Against Aging Diseases And Has Received A Lot Of Attention For This Reason. Both Quercetin 3-O-Beta-D-Glucuronide And Quercetin 3'-O-Beta-D-Glucuronide Are Human Metabolites,Which,Together With Their Regioisomers,Are Required For Biological As Well As Physical Chemistry Studies. We Present Here A Novel Synthetic Route Based On The Sequential And Selective Protections Of The Hydroxyl Functions Of Quercetin Allowing Selective Glycosylation,Followed By Tempo-Mediated Oxidation To The Glucuronide. This Methodology Enabled Us To Synthesize The Five O-Beta-D-Glucosides And Four O-Beta-D-Glucuronides Of Quercetin,Including The Major Human Metabolite,Quercetin 3-O-Beta-D-Glucuronide. (C) 2011 Published By Elsevier Ltd. Doi:10.1016/j.Tet.2011.03.110
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合成参考文献
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