Pyridazinones. 1. Synthesis, antisecretory, and antiulcer activities of thio amide derivatives
作者:Toshihiro Yamada、Youichi Nobuhara、Azuma Yamaguchi、Masahiko Ohki
DOI:10.1021/jm00350a018
日期:1982.8
3(2H)-pyridazinone derivatives and related analogues was synthesized. Substituted 3(2H)-pyridazinones and their 4,5-dihydro analogues were alkylated by omega-haloalkyl cyanides at the N-2 position under phase-transfer catalytic reaction, and the nitrile group was converted to the thio amide group by treatment with hydrogen sulfide alone or with the appropriate primary or secondary amines. Various substituents
为了开发新型抗溃疡药,合成了一系列新型3(2H)-哒嗪酮衍生物和相关类似物。在相转移催化反应下,在N-2位用ω-卤代烷基氰化物将取代的3(2H)-吡啶并壬酮及其4,5-二氢类似物烷基化,并通过氢处理将腈基转化为硫代酰胺基。硫化物单独使用或与适当的伯胺或仲胺一起硫化。在硫代酰胺的氮原子,侧链的碳原子和3(2H)-哒嗪酮环上引入了各种取代基。评价合成的化合物在幽门结扎的大鼠中胃的抗分泌活性,并将选择的化合物应用于实验性溃疡模型,例如大鼠的Shay's,阿司匹林诱导和应激诱导的溃疡。讨论了构效关系。在测试的化合物中,具有C-6苯基和带有末端硫代酰胺基团(48、49、51和52)的N-2烷基侧链的3(2H)-吡嗪酮是最有效的。