Synthesis and Characterization of Novel Pyridine Associated 1,2,4-Triazolo-1,3,4-thiadiazines
作者:Sudugu Ramakrishna Reddy、Ch. Venkata Ramana Reddy、B. Satyanarayana
DOI:10.14233/ajchem.2016.19795
日期:——
A series of novel 3-(1-methyl-1H-pyrazol-4-yl)-6-phenyl-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadaizine and its derivatives (8a-f) were synthesized by using 1-methyl-1H-pyrazole-4-carboxylic acid (3) as starting material and by involving 1-methyl-1H-pyrazole-4-carboxylic acid ethyl ester (4), 1-methyl-1H-pyrazole-4-carboxylic acid hydrazide (5), 5-(1-methyl-1H-pyrazol-4-yl)-[1,3,4]oxadiazole-2-thiol (6) and 4-amino-5-(1-methyl-1H-pyrazol-4-yl)-4H-[1,2,4]triazole-3-thiol (7) as intermediate.
一系列新型3-(1-甲基-1H-吡唑-4-基)-6-苯基-7H-[1,2,4]三唑并[3,4-b][1,3,4]噻二嗪及其衍生物(8a-f)通过使用1-甲基-1H-吡唑-4-羧酸(3)作为起始材料,并涉及1-甲基-1H-吡唑-4-羧酸乙酯(4)、1-甲基-1H-吡唑-4-羧酸酰肼(5)、5-(1-甲基-1H-吡唑-4-基)-[1,3,4]噁二唑-2-硫醇(6)以及4-氨基-5-(1-甲基-1H-吡唑-4-基)-4H-[1,2,4]三唑-3-硫醇(7)作为中间体制备而成。