Synthesis of pyrido[4,3–d]pyrimidine-2,4(1H,3H)-diones and pyrido[4,3–d]pyrimidine-2,4,5(1H,3H,6H)-triones by oxidative aromatization
作者:Zonghui Ma、Ge Gao、Haiying Sun
DOI:10.1016/j.tetlet.2021.152847
日期:2021.3
Pyridopyrimidine-2,4(1H,3H)-diones and pyrido[4,3–d]pyrimidine-2,4,5(1H,3H,6H)-triones are valuable scaffolds which can be used in drug development. In this letter a simple and efficient method for the synthesis of pyrido[4,3–d]pyrimidine-2,4-diones and pyrido[4,3–d]pyrimidine-2,4,5(1H,3H,6H)-triones by oxidative aromatization of easily synthesized 5,6,7,8-tetrahydropyrido[4,3–d]pyrimidine-2,4(1H,3H)-dione derivatives
吡啶并嘧啶-2,4(1H,3H)-二酮和吡啶并[4,3 - d ]嘧啶-2,4,5 (1H,3H,6H)-三酮是有价值的支架,可用于药物开发。在这封信中,一种简单有效的合成吡啶并[4,3 - d ]嘧啶-2,4-二酮和吡啶并[4,3 - d ]嘧啶-2,4,5(1H,3H,6H)的方法据报道,易合成的5,6,7,8-四氢吡啶并[4,3- d ]嘧啶-2,4(1H,3H)-二酮衍生物通过氧化芳构化生成三酮。