How is 5-Bromo-2-methyl-1H-indole (CAS: 1075-34-9) typically synthesized?

5-Bromo-2-methyl-1H-indole is commonly synthesized via alkylation of indole followed by bromination. The alkylation step often uses methyl iodide as the alkylating agent in the presence of a base like sodium hydride. Bromination is typically carried out using bromine in the presence of a Lewis acid catalyst, such as aluminum bromide, to ensure high yield and selectivity.