作者:Hui Wang、Chao Wang、Thomas D. Bannister
DOI:10.1016/j.tetlet.2015.02.051
日期:2015.4
A novel synthetic route to 1,3,5,7-tetrasubstituted pyrimido[4,5-d]pyrimidine-2,4-diones, of interest for potential antitumor activity, is reported. The route uses 1,3-disubstituted 6-amino uracils as starting materials. The key step is a hydrazine-induced cyclization reaction to form the fused pyrimidine ring. By choosing different uracils, acylation reagents, and alkylation reagents, substituents
报道了一种潜在的抗肿瘤活性感兴趣的1,3,5,7-四取代嘧啶[4,5 - d ]嘧啶-2,4-二酮的合成途径。该路线以1,3-二取代的6-氨基尿嘧啶为起始原料。关键步骤是肼诱导的环化反应,以形成稠合的嘧啶环。通过选择不同的尿嘧啶,酰化试剂和烷基化试剂,可以选择性地改变N-1,N-3,C-5和C-7处的取代基,以提供结构上多样化的一组化合物用于生物学评估。