Synthesis and anticonvulsant activity of N-Benzylpyrrolo[2,3-d]-, -pyrazolo[3,4-d]-, and -triazolo[4,5-d]pyrimidines: imidazole ring-modified analogs of 9-(2-Fluorobenzyl)-6-(methylamino)-9H-purine
作者:James L. Kelley、Ronda G. Davis、Ed W. McLean、Robert C. Glen、Francis E. Soroko、Barrett R. Cooper
DOI:10.1021/jm00019a019
日期:1995.9
Analogues of 9-(2-fluorobenzyl)-6-(methylamino)-9H-purine (1) containing isosteric replacements of the imidazole ring atoms were synthesized and tested for anticonvulsant activity. The pyrrolo[2,3-d]-, pyrazolo[3,4-d]-, and triazolo[4,5-d]pyrimidines were less active than 1 against maximal electroshock-induced seizures (MES) in rats when given po. The differences in anti-MES activity for these analogues
合成了9-(2-氟苄基)-6-(甲基氨基)-9H-嘌呤(1)的类似物,其中咪唑环原子是等位取代的,并测试了其抗惊厥活性。当给予po时,吡咯并[2,3-d]-,吡唑并[3,4-d]-和三唑并[4,5-d]嘧啶对大鼠最大的电击诱发癫痫发作(MES)的活性低于1。 。这些类似物的抗MES活性的差异不能通过pKa或亲脂性的差异来解释。但是,四类杂环具有明显不同的计算出的静电等电势图,这可能与最佳的抗惊厥活性有关。