Heterocyclic Amplifiers of Phleomycin. IX. Some Derivatives of Fused and Unfused Mono- and Di-aza Heterocycles

Abstract

Some mono- and bis-dimethylaminoethylthio, dimethylaminopropylthio and carbamoylmethylthio derivatives of pyridine, pyridazine , 1,3,4- thiadiazole , thiazoline , quinoline , quinoxaline , quinazoline , phthalazine , 6-nitrobenzothiazole and benzimidazo [1,2-c] quinazoline have been prepared for testing as amplifiers of phleomycin. These compounds showed relatively low activity; the highest activity was shown by 4-(2′-dimethylaminoethylthio) quinoline at three star, but a number were antibacterial under the test conditions.