已经研究了取代的(2-吡啶硫基)苯基乙酸的环化。已经确定反应在两个反应中心发生,形成取代的3-亚氨基-2-苯基-2,3-二氢噻吩并[2,3- b ]吡啶-2-羧酸和取代的中离子噻唑并[3,2-一个]吡啶鎓-3- olates。环化的方向受培养基的酸度和吡啶核中取代基的特性影响。对合成的中离子化合物的光谱性质进行了实验和理论研究(通过Pariser–Parr–Pople方法)。
Antitrichomonal activity of mesoionic thiazolo[3,2-a]pyridines
作者:Keith A. M. Walker、Eric B. Sjogren、Thomas R. Matthews
DOI:10.1021/jm00149a023
日期:1985.11
Screening of mesoioniccompounds as potential electron acceptors by analogy with metronidazole led to the finding of in vitro antitrichomonal activity for anhydro-2-phenyl-3-hydroxythiazolo [3,2-a]pyridinium hydroxide (1). In a series of analogues, potent in vitro activity was found to be associated with amino substitution; however, such activity was dependent on specific structural features and not