5-Chloro-1H-pyrrolo[2,3-b]pyridine-2-carboxylic acid
6-Hydroxy-2-(pyridin-2-yl)pyrimidin-4(3H)-one
6-Iodoimidazo[1,2-a]pyridine
3-Bromo-6-fluoro-2-methyl-5-nitropyridine
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