1-(4-methylphenyl)sulfonyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrrolo[2,3-b]pyridine

4,6-dimethoxypyrimidine-2-carboxylic acid

ethyl 3-iodo-6-methylimidazo[1,2-a]pyridine-2-carboxylate

ethyl 1,4-dimethylpyrrole-2-carboxylate