Synthesis of Benzimidazoles Condensed with, or Linked to, Nitroxides or Heterocyclic N-Oxides
作者:Kálmán Hideg、Balázs Bognár、Tamás Kálai
DOI:10.1055/s-2008-1067158
日期:2008.8
Pyrazino[1,2-a]benzimidazoles were synthesized starting from 2-acetyl-1H-benzimidazole. Benzimidazoles were linked to nitroxides by lithiation and ring-closure and cross-coupling reactions leading to pH-sensitive EPR probes and a paramagnetic analogue of antiviral agent HBB.
从 2-乙酰基-1H-苯并咪唑开始合成了吡嗪并[1,2-a]苯并咪唑。苯并咪唑通过石化反应、闭环反应和交叉偶联反应与硝基化合物相连,从而得到了 pH 值敏感的 EPR 探针和抗病毒剂 HBB 的顺磁类似物。