参考标题:Synthesis Of 2-Pyridylalkylamines Substituted On The Pyridyl Ring By 摘要:The Invention Provides A Process For Preparing 2-Pyridylalkylamines, Substituted In One Of The 3- Or 5-Positions By Bromo And In The Other By C.Sub.1-4 Alkyl, By Reacting An Appropriate C.Sub.1-4 Alkyl Substituted 2-Pyridylalkylamine With An Electrophilic Brominating Agent. Said 2-Pyridylalkylamines Are Useful As Intermediates In The Synthesis Of Compounds Useful As Histamine H.Sub.1 -Antagonists.