The invention relates to a process for preparing a substituted 2-amino-benz[cd]indole of the Formula I: ##STR1## The nitro group of a substituted 1-nitro-8-cyano-naphthalene compound is reduced to an amine group to form a substituted 1-amino-8-cyano-naphthalene compound, which is cyclized to form the substituted 2-amino-benz[cd]indole. The reduction and cyclization may be effected in a one-pot procedure using a reducing agent such as stannous chloride, which generates an acid that cyclizes the reduction product. The syntheses of the 1-nitro-8-cyano-naphthalene compound and its precursors are also described.
本发明涉及一种制备取代的2-
氨基苯[cd]
吲哚(
化学式I)的方法:##STR1## 将取代的1-硝基-8-
氰基萘化合物的硝基还原为胺基,形成取代的1-
氨基-8-
氰基萘化合物,该化合物环化形成取代的2-
氨基苯[cd]
吲哚。还原和环化可以在一个锅中使用还原剂(例如
氯化亚锡)进行,该还原剂产生一个酸,使还原产物环化。还描述了1-硝基-8-
氰基萘化合物及其前体的合成方法。