Synthesis and biological activity of polyfluorinated p-aminosalicylic acids and their amides
作者:Yanina V. Burgart、Irina V. Shchur、Evgeny V. Shchegolkov、Victor I. Saloutin
DOI:10.1016/j.mencom.2020.09.028
日期:2020.9
Polyfluorinated analogues of salicylamide and p-aminosalicylic acid have been synthesized based on methyl polyfluorosalicylates. Polyfluorosalicylamides were obtained by the reaction with aqueous ammonia, while 4-aminopolyfluorosalicylic acids were prepared in two steps via regio-oriented nucleophilic replacement of para-positioned fluorine atom with azido group followed by its reduction. 3,4,5-Trifluorosalicylamide
基于甲基多氟水杨酸酯,已经合成了水杨酰胺和对氨基水杨酸的多氟类似物。通过与氨水反应获得多氟水杨酰胺,同时分两步制备4-氨基多氟水杨酸,方法是通过叠氮基将对位氟原子进行区域定向亲核取代,然后还原。3,4,5-三氟水杨酰胺在热板试验中显示出明显的止痛活体内活性,而4-氨基-3,5-二氟水杨酸显示出较高的抑结核活性。