The title compounds were prepared from pyridine-4-carboxamide. Its alkylation with 2-chloroethanol or 3-chloropropanol, followed by hydrogenation gave 1-substituted piperidine-4-carboxamides IIIa and IIIb, respectively, which on treatment with thionyl chloride were converted into the respective 1-substituted halogenoalkylpiperidine-4-carbonitriles IVa and IVb. On cyclization, compounds IVa and IVb afforded 1-azabicyclo[2.2.2]octane-4-carbonitrile and 1-azabicyclo[3.2.2]nonane-5-carbonitrile, respectively.
这些标题化合物是从吡啶-4-甲酰胺制备的。它与2-氯乙醇或3-氯丙醇烷基化后,经过氢化反应得到了分别为1-取代哌啶-4-甲酰胺IIIa和IIIb,然后用氯化亚磺酸处理,转化为相应的1-取代卤代烷基哌啶-4-碳腈化合物IVa和IVb。在环化反应中,化合物IVa和IVb分别得到了1-氮杂双环[2.2.2]辛烷-4-碳腈和1-氮杂双环[3.2.2]壬烷-5-碳腈。