Triazolylbenzimidazolthiones and derivatives of the new 1,2,3-triazolo[ 1,5-<i>a</i>][ 1,3,5]benzotriazepine heterocycle
作者:Giuliana Biagi、Irene Giorgi、Oreste Livi、Antonio Nardi、Valerio Scartoni
DOI:10.1002/jhet.5570390628
日期:2002.11
Four new triazolylbenzimidazolthione derivatives (2a-d), analogous to triazolylbenzimidazolone derivatives previously tested as activators of the BKCa potassium channels, were prepared and assayed without success. Some derivatives of a new tricyclic nitrogen heterocycle, 1,2,3-triazolo[1,5-a][1,3,5]benzo-triazepine, bearing a carboxamido group in the 3 position, other substituents in the 8 position
制备了四种新的三唑基苯并咪唑硫酮衍生物(2a-d),类似于先前作为BK Ca钾通道活化剂进行测试的三唑基苯并咪唑酮衍生物,但未成功进行分析。新的三环氮杂环1,2,3-三唑[1,5- a] [1,3,5]苯并三氮杂卓,在3位带有一个羧酰胺基,在8位带有其他取代基,并具有羰基(5a-d)或硫酮(6a-c)或甲硫基(7a-c)的功能在5位合成。用吗啉或环戊胺对甲硫基取代基进行亲核取代,得到了5-氨基取代的三环衍生物8a-d。从1-(2-硝基苯基)-4-氰基-5-氨基-1,2,3-三唑(9)开始,还获得了3-氰基-三唑并苯并三氮杂-1-基-5衍生物12。测试了大多数新化合物对BK Ca钾离子通道,苯并二氮杂卓和腺苷A 1和A 2a受体的作用,但未检测到显着活性。