Synthesis of 4-aryl-2,3,6,7-tetrahydro-1<i>H</i>-pyrimido[4,5-<i>b</i>][1,4]-diazepin-6-ones from 4,5-diamino-1<i>H</i>-pyrimidin-6-ones and 1-aryl-3-(dimethylamino)-1-propanones
作者:Braulio Insuasty、Jairo Quiroga、Juan Carlos Argoti、Samuel Gómez、Roberto Martínez、Enrique Angeles、Rubén Gabiño、Manuel Nogueras、Adolfo Sánchez
DOI:10.1002/jhet.5570350629
日期:1998.11
The reaction of 1-aryl-3-(dimethylamino)-1-propanones 1 with one equivalent of 4,5-diamino-1H-pyrimidin-6-ones 2, in acidic medium, leads to the formation of 4-aryl-2,3,6,7-tetrahydro-1H-pyrimido[4,5-b]-[1,4]diazepin-6-ones 3. The structure elucidation of the products is based on detail nmr analysis of experiments such as 13C, 1H and DEPT including selective 13C1H} decoupling experiments.
1-芳基-3-(二甲基氨基)-1-丙烷1与一当量的4,5-二氨基-1 H-嘧啶-6-酮2在酸性介质中的反应导致形成4-芳基- 2,3,6,7-四氢-1 H-嘧啶基[4,5- b ]-[1,4]二氮杂-6-1-酮3。产物的结构阐明是基于对13 C,1 H和DEPT等实验的详细nmr分析,其中包括选择性13 C 1 H}解耦实验。