Towards assembling of diarylmethine unit present in biologically important molecules, we have developed a new Weinreb Amide (WA) basedbuildingblock, derived from glycolic acid. The WA functionality present in this buildingblock had allowed the sequential addition of various arylmagnesium bromide reagents in a controlled manner enabling assembling of diarylmethine unit. The developed synthetic route
为了组装生物学上重要的分子中存在的二芳基次甲基单元,我们开发了一种新的基于 Weinreb 酰胺 (WA) 的结构单元,该结构单元源自乙醇酸。该构件中存在的 WA 官能团允许以受控方式顺序添加各种芳基溴化镁试剂,从而能够组装二芳基次甲基单元。开发的合成路线可以轻松获得重要的二芳基乙烯和 α,α-二芳基乙二醇。合成的α,α-二芳基乙二醇为合成重要的对称和不对称α,α-二芳基乙醛作为有价值的中间体铺平了道路。
Weinreb amide based building blocks for convenient access to 1,1-diarylethenes and isocombretastatin analogues
A successful strategy based on the synthetic equivalent containing Weinrebamide functionality for the convenientaccess to 1,1-diarylethenes in general and for the isocombretastatin analogues in particular has been developed from the commercially available glyoxalic acid. The convenience with which the structural variations can be made in assembling the aryl residues shows generality associated with