tert-Butyl 5-bromo-3-methyl-1H-pyrazolo[3,4-b]pyridine-1-carboxylate
6-Chloropyrido[2,3-b]pyrazine
8-Fluoroimidazo[1,2-a]pyridine-3-carboxylic acid
5-Bromopyridazin-4-amine
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