New Substituted 1-Aryl-4,4,6-Trimethyl-3,4-Dihydropyrimidine-2-(1<i>H</i>)Thiones; A Metal-Free and Solvent-Free Synthesis, Characterization, and Lymphoid Tyrosine Phosphatase Inhibition Studies
作者:Asma Khurshid、Aamer Saeed
DOI:10.1002/jccs.201600805
日期:2017.2
4‐dihydropyrimidine‐2‐thiones (3a–n) were synthesized by a green protocol, and their structures were characterized by spectroanalytical data. The compounds were obtained in high yields by efficient annulation of mesityl oxide (4‐methylpent‐3‐en‐2‐one) with anilines in the presence of potassium thiocyanate. The reaction is essentially metal‐catalyst‐ and solvent‐free, as mesityl oxide itself is the solvent
通过绿色方案合成了十四个3,4-二氢嘧啶-2-硫酮(3a–n)系列,并通过光谱分析数据对它们的结构进行了表征。在硫氰酸钾存在下,通过将苯异丙胺高效氧化异丁烯酸(4-甲基戊-3-烯-2-酮)制得高收率的化合物。该反应基本上不含金属催化剂和溶剂,因为异亚丙基丙酮本身既是溶剂又是反应物。测试了这些化合物抑制淋巴酪氨酸磷酸酶PTPN22的能力,这14种化合物中有5种的IC 50值处于中微摩尔范围,其中最有效的化合物是化合物3d,其2-处有甲氧基取代基带有IC的苯环的位置50 = 18±1μM,第二强化合物(3c)的IC 50值为45±3μM,在苯环的2位和4位都具有甲基取代基。