Nucleophilic replacement of the azido groups by amines in 2,4,6-triazido-3-chloro-5-cyanopyridine

2,4,6-Triazido-3-chloro-5-cyanopyridine reacts with pyrrolidine and piperidine to form corresponding 2-azido-4,6-diamino-3-chloro-5-cyanopyridines in high yields.