How is 5-Amino-2-pyridinecarbonitrile (CAS: 55338-73-3) typically synthesized?

5-Amino-2-pyridinecarbonitrile (CAS: 55338-73-3) is typically synthesized via a multistep process that starts with the nitrile group attachment to the pyridine ring. A common method involves the reaction of 2-chloro-5-nitropyridine with sodium cyanide in the presence of a base like sodium hydroxide. The product is then converted to the amino derivative by reducing the nitro group to an amino group.