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
Carbenoid intermediates in the synthesis of mesoionic anhydro-4-hydroxythiazolium hydroxides
作者:Kevin T. Potts、Peter Murphy
DOI:10.1039/c39840001348
日期:——
α-(Tosylhydrazono)phenylacetyl chloride and N-Monosubstituted thioamides in dry, non-protic solvents and in the presence of Et3N give representatives of the title mesoionic ring system in good to excellent yields; carbene or carbenoid type intermediates are most likely involved in these regiospecific cyclizations.