A short and efficient synthetic protocol for the synthesis of 5-substituted-4,6-dioxo-pyrrolo[2,3-d]pyrimidines
作者:N.M. Sekhar、Palle V.R. Acharyulu、Yerramilli Anjaneyulu
DOI:10.1016/j.tetlet.2011.05.141
日期:2011.8
A short and efficient synthesis for 5-substituted-4,6-dioxo-pyrrolo[2,3-d]pyrimidines has been developed by the cyclocondensation of α,α-dibromoaldehydes with 2,4-diamino-6-hydroxypyrimidine under mild basic conditions in good yields. Application of this protocol has been demonstrated in the synthesis of a metabolite of Pemetrexed disodium, a novel multi-targeted antifolate.
在温和的碱性条件下,通过α,α-二溴醛与2,4-二氨基-6-羟基嘧啶的环缩合反应,开发了一种短而有效的5-取代的4,6-二氧代吡咯并[2,3- d ]嘧啶的合成方法。条件良好。在合成培美曲塞二钠(一种新型的多靶点抗叶酸药物)的代谢产物中已证明了该方案的应用。