Synthesis of Novel 3-Amino-2-(1H)-Thioxo-4(3H)-<i>Quinazolinone Derivatives. Part 3</i>
作者:Wanda Nawrocka、Anna Wojcicka、Anna Nowicka
DOI:10.1080/10426507.2011.582055
日期:2012.1.1
Abstract The synthesis of novel derivatives containing the quinazolinone-4 moiety is described. 3-Amino-2(1H)-tioxo-4(3H)-quinazolinone (1) forms a sodium salt 2, which was subjected to reaction with dicarboxylic acid chlorides such as chloroformyl ethyl formate and malonyl chloride, leading to the corresponding ester 3 and acid 4, respectively. 3-Amino-2-ethoxycarbonylmethylthio-4(3H)-quinazolinone (5) was
摘要 描述了含有喹唑啉酮 4 部分的新型衍生物的合成。3-Amino-2(1H)-tioxo-4(3H)-quinazolinone (1) 形成钠盐 2,与二甲酰氯如氯甲酰乙基甲酸酯和丙二酰氯反应,生成相应的酯 3和酸4,分别。将3-氨基-2-乙氧基羰基甲硫基-4(3H)-喹唑啉酮(5)酰化或氨解得到各种化学结构的产物。化学结构 3、4、6-12 和 14-18 通过元素分析及其 IR、1H NMR 和质谱的结果进行鉴定。图形概要