Four 3-deaza analogues of the potent anticonvulsant purine, BW A78U, were synthesized and tested for anticonvulsant activity. The imidazo[4,5-c]pyridines 9–12 were prepared in two steps from 4-chloro-1H-imidazo[4,5-c]pyridine (2). The compounds were potent anticonvulsant agents against maximal electroshock-induced seizures in rats with i.p. ED50 ranging from 2 to 3.5 mg/kg. However, these 3-deazapurines
合成了强抗惊厥
嘌呤的四个3-deaza类似物BW A78U,并测试了其抗惊厥活性。
咪唑并[4,5-c]
吡啶9-12分两步从4-
氯-1 H-
咪唑并[4,5- c ]
吡啶(2)制备。该化合物是有效的抗惊厥药,可对抗ip ED 50为2至3.5 mg / kg的大鼠最大的电击诱发的癫痫发作。但是,这些3-deazapurines的毒性明显高于BW A78U,这使其无法开发为潜在的抗癫痫药。