STUDIES ON PYRAZINE DERIVATIVES. XL. SYNTHESIS, REACTIVITY, AND TUBERCULOSTATIC ACTIVITY OF 4-HYDROXYALKYL-5-PYRAZINYL4H-[1,2,4]-TRIAZOLE-3-THIONES
摘要:
In the reactions of pirazinoyldithiocarbazoic acid monoester with aminoalcohols, 4-hydroxyalkyl-1,2,4-triazole-3-thiones were obtained. Their susceptibility to alkylation, as well as the condensed heterocyclic 1,3-thiazacycloalkyl[3,2-b]-1,2,4-thiazoles(1) formation ability, were examined. Some of the compounds obtained were tested for their tuberculostatic activity.
series of newderivatives of 1,2,4-triazole-3-thiol. As starting materials methyl 3-acyldxithiocarbazates were used, which on reaction with amines gave the corresponding 4,5-disubstituted 1,2,4-triazole-3-thiol derivatives (3). Into the 4-position of the 1,2,4-triazole-3-thiol system a β-hydroxyethyl substituent was introduced (compounds 4). These compounds were alkylated with methyl iodide to from 6, with