Synthesis and anticonvulsant activity of 3<i>H</i>-imidazo[4,5-<i>c</i>]-pyridazine, 1<i>H</i>-imidazo[4,5-<i>d</i>]pyridazine and 1<i>H</i>-benzimidazole analogues of 9-(2-fluorobenzyl)-6-methylamino-9<i>H</i>-purine
作者:James L. Kelley、James B. Thompson、Virgil L. Styles、Francis E. Soroko、Barrett R. Cooper
DOI:10.1002/jhet.5570320503
日期:1995.9
The 3H-imidazo[4,5-c]pyridazine, 1H-imidazo[4,5-d]pyridazine, and 1H-benzimidazole analogues of the potent anticonvulsant purine 9-(2-fluorobenzyl)-6-methylamino-9H-purine (1, 78U79) were synthesized and tested for anticonvulsant activity. The 3H-imidazo[4,5-c]pyridazines 8 and 9 were prepared in five stages from 3,4,5-trichloropyridazine (2). The 1H-imidazolo[4,5-d]pyridazine 15 was synthesized in
高效抗惊厥嘌呤9-(2-氟苄基)-6-甲基氨基-的3 H-咪唑并[4,5- c ]哒嗪,1 H-咪唑并[4,5- d ]哒嗪和1 H-苯并咪唑类似物合成9 H-嘌呤(1,78U79)并测试其抗惊厥活性。从3,4,5-三氯哒嗪(2)分五个阶段制备3 H-咪唑并[4,5- c ]哒嗪8和9。从4-[(苄氧基)甲基] -1,5-二氢-4 H的四个阶段合成1 H-咪唑并[4,5- d ]哒嗪15-咪唑并[4,5 - d ]哒嗪-4-酮(10a)。由2,6-二硝基苯胺分三步制备苯并咪唑类似物18和20。这些化合物在保护大鼠免受最大电击诱发的癫痫发作中的活性只有1的十分之一或更少。