How is 3-{2-[4-(2-Methylphenyl)-1-piperazinyl]ethyl}-5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyridine (CAS: 72822-12-9) typically synthesized?

This compound is synthesized via a multistep process involving the condensation of an amine with an azide, followed by a ring expansion and substitution reaction. The synthesis typically requires the use of triphenylphosphine as a catalyst, and the overall yield is moderate to good. Care should be taken to minimize exposure to moisture and to use appropriate protective measures during the reaction.