How is 6-Bromoimidazo[1,2-a]pyridine-2-carboxylic acid (CAS: 749849-14-7) typically synthesized?

6-Bromoimidazo[1,2-a]pyridine-2-carboxylic acid is typically synthesized via a multistep process involving the preparation of the imidazo[1,2-a]pyridine ring followed by bromination and carboxylation. Common catalysts include Lewis acids or Brønsted acids, and the reaction conditions should be carefully controlled to ensure high yield and selectivity.