A synthetic route from D-glucose to D-myo-inositol-1, 4, 5-tris(dihydrogenphosphate): use of an unusual ene reaction and the Bu2SnCl2/Bu2SnH2 reagent
作者:Derrick L.J. Clive、Xiao He、Maarten H.D. Postema、M. Jeffrey Mashimbye
DOI:10.1016/s0040-4039(98)00792-8
日期:1998.6
d-Glucose was converted into the propargylsilane aldehyde 3, which underwent ring closure with retention of silicon, in the presence of camphorsulfonic acid, to give 5, and this was elaborated, via ketone 22, into 2, which had previously been transformed into d-myo-inositol-1, 4, 5-tris(dihydrogenphosphate). A crucial step in the synthesis is the stereoselective reduction of 22 with Bu2SnCl2/Bu2SnH2
d-葡萄糖转化为炔丙基硅烷醛3,在樟脑磺酸存在下进行闭环并保留硅,得到5,然后通过酮22精制为2,之前已转化为d -肌醇-1,4,5-三(磷酸二氢)。合成中的关键步骤是用Bu 2 SnCl 2 / Bu 2 SnH 2选择性立体还原22,该试剂系统对生成赤道醇表现出强烈的偏好。