Synthesis and antimalarial effects of<i>N,N</i>-dialkyl-6-(substituted phenyl)-1,2,4,5-tetrazin-3-amines
作者:Leslie M. Werbel、Dennis J. Mcnamara、Norman L. Colbry、Judith L. Johnson、Margaret J. Degnan、Barbara Whitney
DOI:10.1002/jhet.5570160511
日期:1979.7
3-(methylthio)-6-(substituted phenyl)-1,2,4,5-tetrazines (VII) were obtained by thiobenzoylation of hydrazinecarbohydrazonothioic acid methyl ester with [[(substituted phenyl)thioxomethyl]thio]-acetic acids (V) to afford the 1,2-dihydro-3-(methylthio)-6-(substituted phenyl)-1,2,4,5-tetrazines (VI). Oxidation with bromine in acetic acid provided the desired intermediates. The target 6-(substituted phenyl)-1
一系列N,N的合成描述了通过两种途径的-二烷基-6-(取代的苯基)-1,2,4,5-四嗪-3-胺(IV)。第一种途径(方案I)涉及甲for(II)到3-溴-6-(取代的苯基)-1,2,4,5-四嗪(III)的氧化环化,然后用胺处理。第二种(方案II)利用胺处理3-(甲硫基)-6-(取代的苯基)-1,2,4,5-四嗪(VII)以提供所需的产物。中间体3-(甲硫基)-6-(取代的苯基)-1,2,4,5-四嗪(VII)是通过肼碳酰肼基硫代甲酸甲酯与[[((取代的苯基)硫代羰基甲基]硫代]-乙酸的硫代苯甲酰化而制得的(V)得到1,2-二氢-3-(甲硫基)-6-(取代的苯基)-1,2,4,5-四嗪(VI)。在乙酸中用溴氧化可提供所需的中间体。目标6-(取代的苯基)-1,2,4,