Design, Synthesis and Biological Evaluation of Novel N-Alkyl-4-Methyl-2,2-
Dioxo-1H-2λ6,1-Benzothiazine-3-Carboxamides as Promising Analgesics
作者:Victoriya Georgiyants、Igor Ukrainets、Anna Burian、Natali Voloshchuk、Illia Taran、Svitlana Shishkina、Hanna Severina、Lina Grinevich、Galina Sim、Kateryna Burian
DOI:10.2174/1573406418666220820103927
日期:2023.2
structure-activity relationships (SAR) have been studied. The most rational approaches to the synthesis of lead compounds have been developed. The most active compounds have shown high anti-inflammatory and analgesic activities. Methods: The structure of all compounds prepared has been confirmed by the data of elemental analysis, 1H- and 13C NMR spectroscopy, and electrospray ionization liquid chromato-mass spectrometry
简介:对传统医学中长期使用的止痛药的文献分析表明,这些止痛药是从植物材料中分离出来的,其中许多是各种羧酸的烷基酰胺。这一事实为研究大量 N-alkyl-4-methyl-2,2-dioxo-1H-2λ6,1-benzothiazine-3-carboxamides 作为潜在的新型镇痛药奠定了基础。研究对象以传统方式合成,涉及将4-甲基-2,2-二氧代-1H-2λ6,1-苯并噻嗪-3-甲酸初步转化为咪唑啉,其中咪唑啉作为酰化剂. 该方法实施简单,通常最终烷基酰胺的产率高。然而,在与位阻叔丁胺以及“正”产物反应时,意外形成了 N-tert-butyl-4-methyl-1-(4-methyl-2, 观察到 2-dioxo-1H-2λ6,1- benzothiazine-3-carbonyl)-2,2-dioxo-2λ6,1-benzothiazine-3-carboxamide,其通过 X 射线衍射分析表征为与