Synthesis of Novel 8,9-Dihydro-5<i>H</i>-pyrimido[4,5-<i>e</i>][1,4]diazepin-7(6<i>H</i>)-ones
作者:Jinbao Xiang、Dongsheng Wen、Hongxiang Xie、Qun Dang、Xu Bai
DOI:10.1021/cc100039w
日期:2010.7.12
been developed for the synthesis of 4,6,8,9-tetrasubstituted 8,9-dihydro-5H-pyrimido[4,5-e][1,4]diazepin-7(6H)-ones from 4,6-dicholoropyrimidine aldehyde, N-substituted amino acid esters, and amines in five steps. This synthetic strategy is based on suitably substituted pyrimidines as bis-electrophilic species reacting with various amines to construct the pyrimido[4,5-e][1,4]diazepine core with a strategically
已开发出实用且有效的方法来合成4,6,8,9-四取代的8,9-二氢-5 H-嘧啶基[4,5- e ] [1,4]二氮杂-7-7(6 H)-五步合成4,6-二氯嘧啶醛,N-取代的氨基酸酯和胺类化合物。这种合成策略是基于适当取代的嘧啶,它是与各种胺反应的双亲电子物种,以构建具有策略上锚定的官能团的嘧啶并[4,5- e ] [1,4]二氮杂卓核,以进一步衍生化。通过制备具有代表性的8,9-dihydro-5 H -pyrimido [4,5- e ] [1,4] diazepin-7(6 H)的33元文库证明了该方法的实用性)-良品至良品。