2,1-Benzothiazine 2,2-Dioxides. 4*. Synthesis, Structure, and Analgesic Properties of 4-Hydroxy-1-Methyl-2,2-Dioxo-N-(Pyridin-2-yl)-1H-2λ6,1-Benzothiazine-3-Carboxamides
作者:I. V. Ukrainets*、L. A. Petrushova、S. P. Dzyubenko、Liu Yangyang
DOI:10.1007/s10593-014-1508-1
日期:2014.7
An improved method has been proposed for the reaction of the methyl ester of 4-hydroxy-1-methyl-2,2-di-oxo-1H-2λ6,1-benzothiazine-3-carboxylic acid with hetarylamines to give 4-hydroxy-1-methyl-2,2-di-oxo-N-(pyridin-2-yl)-1H-2λ6,1-benzothiazine-3-carboxamides and analogs with the similar structure in good yield and purity. X-ray diffraction structural analysis has indicated that these products exist
一种改进的方法已经提出了的甲基酯的反应4-羟基-1-甲基-2,2-二氧代-1H-2λ 6,1-苯并噻嗪-3-羧酸与hetarylamines,得到4-羟基-1-甲基-2,2-二氧代-N-(吡啶-2-基)-1H-2λ 6,1-苯并噻嗪-3-甲酰胺,并用良好的产率和纯度的类似结构的类似物。X射线衍射结构分析表明这些产物以内盐形式存在。这些化合物的质谱研究表明,它们具有特征性的挤出SO 2的趋势。药理学测试已经显示出比已知的奥昔康类药物具有更好的止痛性能的有前途的化合物。