Synthesis and anticonvulsant activity of 3-[3-[(dimethylamino)-methyl]-5-methyl-4<i>H</i>-1,2,4-triazol-4-yl]-4-(<i>o</i>-chlorobenzoyl)pyridine
作者:Vinod K. Arora、Edward E. Knaus
DOI:10.1002/jhet.5570360130
日期:1999.1
Wolff-Kishner reduction of 3-amino-4-(o-chlorobenzoyl)pyridine (3) afforded 3-amino-4-(o-chlorobenzyl)pyridine (5), which on subsequent reaction with triethyl orthoformate and then acetyl hydrazide yielded 1-acetyl-2-[N-[4-(o-chlorobenzyl)pyridin-3-yl]formimidoyl]hydrazone (7). Cyclization of hydrazone 7 gave 3-(3-methyl-4H-1,2,4-triazol-4-yl)-4-(o-chlorobenzyl)pyridine (8), which on Jones oxidation
Wolff-Kishner还原3-氨基-4-(邻氯苯甲酰基)吡啶(3),得到3-氨基-4-(邻氯苄基)吡啶(5),其随后与原甲酸三乙酯反应,然后与乙酰肼反应生成1 -乙酰基-2- [ N- [4-(邻氯苄基)吡啶-3-基]甲酰亚胺基] hydr(7)。7 7的环化反应生成3-(3-甲基-4 H -1,2,4-三唑-4-基)-4-(邻氯苄基)吡啶(8),经琼斯氧化反应生成3-(3-甲基-4 H -1,2,4-三唑-4-基)-4-(邻氯苄基)吡啶(9)。3-(3-甲基-4 H -1,2,4-三唑-4-基)-4-(邻氯苄基)吡啶(9)与福尔马林水溶液和二甲胺盐酸盐的曼尼克反应得到3- [3- [(二甲基氨基)甲基] -5-甲基-4 H -1,2,4-三唑-4-基] -4-(邻氯苯甲酰基)-吡啶(10)。3- [3-[(二甲基氨基)甲基] -5-甲基-4 H -1,2,4-三唑-4-基] -4-(