Preparation of 4-Alkyl-2-[N-(tert-butoxycarbonyl)amino]pyridines by Alkylation, Nucleophilic Addition, and Acylation of 2-[N-(tert-Butoxycarbonyl)amino]-4-picoline1
Preparation of 4-Alkyl-2-[<i>N</i>-(<i>tert</i>-butoxycarbonyl)amino]pyridines by Alkylation, Nucleophilic Addition, and Acylation of 2-[<i>N</i>-(<i>tert</i>-Butoxycarbonyl)amino]-4-picoline<sup>1</sup>