Use of Cyclohexylisocyanide and Methyl 2-Isocyanoacetate as Convertible Isocyanides for Microwave-Assisted Fluorous Synthesis of 1,4-Benzodiazepine-2,5-dione Library
作者:Hongyu Zhou、Wei Zhang、Bing Yan
DOI:10.1021/cc900157w
日期:2010.1.11
A new protocol in which cyclohexylisocyanide and methyl 2-isocyanoacetate are used as convertible isocyanides for Ugi/de-Boc/cyclization/Suzuki synthesis of biaryl-substituted 1,4-benzodiazepine-2,5-diones has been developed. Ugi reactions of Boc-protected anthranilic acids, fluorous benzaldehydes, amines, and cyclohexylisocyanide or methyl 2-isocyanoacetate were carried out at room temperature. Microwave-promoted
已经开发了一种新的方案,其中环己基异氰酸酯和2-异氰基乙酸甲酯被用作可转换的异氰酸酯,用于Ugi / de-Boc /环化/ Suzuki合成联芳基取代的1,4-苯并二氮杂-2,5-二酮。Boc保护的邻氨基苯甲酸,氟苯甲醛,胺和环己基异氰酸酯或2-异氰基乙酸甲酯的Ugi反应在室温下进行。微波促进的de-Boc /环化反应得到1,4-苯并二氮杂-2,5-二酮(BZDs)。Suzuki偶联反应通过去除氟标签并引入联芳基进一步使BZD环衍生化。通过微波辅助溶液相荧光平行合成,制备了一个包含四个多样性点的三十三元联芳基取代的BZD库。