Bischler–Napieralski/heterocyclization tandem closure, to give novel 6,11-dihydro-5H-imidazo[1′,5′:1,2]pyrido[3,4-b]indol-2-ium salt derivatives, is described. By changing the amine and the acid components with ammonium formate, the same procedure affords 6,11-dihydro-5H-imidazo[1′,5′:1,2]pyrido[3,4-b]indole derivatives.
一个简单,有效且通用的两步程序,通过先后的Ugi反应然后进行Bischler-Napieralski /杂环串联串联封闭,得到新颖的6,11-dihydro-5 H-
咪唑[1',5':1,2]描述了
吡啶并[3,4- b ]
吲哚-2-鎓盐衍
生物。通过用
甲酸铵改变胺和酸成分,相同的方法得到6,11-二氢-5 H-
咪唑并[1',5':1,2,]
吡啶并[3,4- b ]
吲哚衍
生物。