📜1,3,6-Tri-O-Benzyl-2-C-(2,3,4,6-Tetra-O-Acetyl-β-D-Glucopyranosyl)-7-O-Acetylxanthone置于palladium On Carbon,Ammonium Acetate,四丁基溴化铵,氢气,Sodium,Sodium Hydroxide体系中,用 甲醇,二氯甲烷,氯仿,水,丙酮 作为反应溶剂,20.0~60.0 °C,101.33 Kpa 条件下,反应 11.0H,反应生成 新芒果苷
参考文献:Semi-Synthesis Of Neomangiferin From Mangiferin
标题:Semi-Synthesis Of Neomangiferin From Mangiferin
摘要:Neomangiferin,A Natural Xanthone Derivative Bearing Both O-And C-Glucosides,Was Isolated From The Leaves Of Gentiana Asclepiadea L And Has Shown Potential Anti-Diabetic Activity. We Describe Herein The First Semi-Synthesis Of Neomangiferin From The Natural C-Glucoside Mangiferin And Glucose. The Developed Synthesis Presents A Facile Protection Strategy Using Jurd'S Method To Distinguish The Different Phenolic Hydroxyl Groups. Following This Strategy,The Regioselective Protection Of 1,3,6-Hydroxyl Groups Was Accomplished And Neomangiferin Was Prepared By Glycosylation Under The Phase-Transfer Catalysis Conditions. (C) 2014 Elsevier Ltd. All Rights Reserved.
DOI:10.1016/j.Tetlet.2014.03.129