根据X射线粉末衍射数据确定了两种尼美舒利衍生物C 13 H 14 O 3 N 2 S(2)和C 21 H 16 O 5 N 2 S(3)的晶体结构,并计算了它们的电子结构。 DFT级别。优化的分子几何结构2和3与从晶体学分析获得的几何结构非常接近。分子间氢键和π … π两种化合物中的堆积相互作用形成超分子组装。HOMO-LUMO能隙(> 2.2 eV)表明这两种化合物都具有很高的动力学稳定性。尽管化合物2没有表现出任何抗炎活性,但化合物3可以在大鼠爪中引起34%的水肿抑制。
Lewis acid free high speed synthesis of nimesulide-based novel N-substituted cyclic imides
作者:Kavitha Kankanala、Vangala Ranga Reddy、Khagga Mukkanti、Sarbani Pal
DOI:10.1590/s0103-50532010000600015
日期:——
The first synthesis of nimesulide-based novel cyclic imides has been accomplished via the reaction of an amine prepared from nimesulide with appropriate anhydrides in the presence of sodium acetate. Using this process a variety of N-substituted cyclic imides was prepared in good yields in glacial acetic acid. Some of the compounds synthesized showed anti-inflammatory activities when tested in vivo.