Versatile Routes to C-2- and C-6-Functionalized Glucose Derivatives of Iminodiacetic Acid
作者:Cécile Dumas、Roger Schibli、P. August Schubiger
DOI:10.1021/jo025978o
日期:2003.1.1
ofuranoside (4) (C-2 position) and 1,2:3,5-(O-methylene)-alpha-d-glucose (11) (C-6 position), respectively, in the presence of sodium hydride in DMF at room temperature, affording the desired intermediates. For aminopropyl derivatives, yields varied between 57% and 65%, and for aminooctyl derivatives, yields varied between 40% and 71%. After deprotection of the amine functionality, the metal chelate
制备了一系列新的d-葡萄糖衍生物,其在C-2或C-6位置被亚氨基二乙酸部分官能化以用于过渡金属络合。糖和金属螯合部分被丙基或辛基链分开,并通过溴代烷基胺的反应引入。N-1-Boc-3-溴丙胺(17)或N-(8-溴辛基)邻苯二甲酰亚胺(19)与甲基3,5,6-三-O-苄基-α-β-d-葡萄糖呋喃糖苷(4)反应在室温在DMF中存在氢化钠的情况下,分别在(C-2位)和1,2:3,5-(O-亚甲基)-α-d-葡萄糖(11)(C-6位)中,提供所需的中间体。对于氨基丙基衍生物,产率在57%至65%之间变化,对于氨基辛基衍生物,产率在40%至71%之间变化。胺官能团脱保护后,在三乙胺的存在下,在四氢呋喃中回流,通过与溴乙酸甲酯的二烷基化反应(6a-c和13a,b)来建立金属螯合物。对于在C-2位修饰的葡萄糖,产率在56%至69%之间,对于在C-6位修饰的一种葡萄糖,产率在58%至62%之间。所有化合物均通过1