2-Heteroaryl-[1,2,4]triazolo[1,5-<i>c</i>]quinazoline-5(6 H)-thiones and Their S-Substituted Derivatives: Synthesis, Spectroscopic Data, and Biological Activity
作者:Andrii K. Bilyi、Lyudmyla M. Antypenko、Vitalii V. Ivchuk、Oleksandr M. Kamyshnyi、Natalya M. Polishchuk、Sergiy I. Kovalenko
DOI:10.1002/cplu.201500051
日期:2015.6
the synthesis of 2-heteroaryl-[1,2,4]triazolo[1,5-c]quinazoline-5(6 H)-thiones have been developed: thiolation of oxo derivatives, [5+1] cyclocondensation of [2-(3-heteroaryl-[1,2,4]triazol-5-yl)phenyl]amines with carbon disulfide, potassium ethyl xanthogenate, or aryl isothiocyanates, and in situ reaction of 2-isothiocyanatobenzonitrile with hydrazides. A series of N-R-2-[(2-heteroaryl-[1,2,4]triazole-[1
在继续寻找新颖的,生物学上有效的杂环剂时,已开发出几种合成2-杂芳基-[1,2,4]三唑并[1,5-c]喹唑啉-5(6 H)-硫酮的方法:羰基硫醇化,[2-(3-杂芳基-[1,2,4]三唑-5-基)苯基]胺的[5 + 1]与二硫化碳,乙基黄原酸钾或芳基异硫氰酸酯的环缩合,以及2-异硫氰酸根合苄腈与酰肼的原位反应。通过对相应的乙酸进行氨解并将其烷基化,可得到一系列的NR-2-[(2-杂芳基-[1,2,4]三唑-[1,5-c]喹唑啉-5-基)硫代]乙酰胺。硫醇钾盐与NR-2-氯乙酰胺。已经确定,一些硫醇钾4 a-4 d,4 h和4 i对金黄色葡萄球菌具有很高的抗菌活性,最低抑菌浓度为12。5μgmL-1,最低杀菌浓度为25μgmL-1,超过了甲氧苄啶的值。此外,研究了2- [3-(1 H-吲哚-2-基)-1 H-1,2,4-三唑-5-基]苯基}胺2 i在100-0.01μM的浓度范围内在9种