3-Nitro-1H-pyrrolo[3,2-b]pyridine-7-carboxylic acid
6-Fluoropyrazolo[1,5-a]pyridine-5-carboxylic acid
8-Bromo-6-nitroimidazo[1,2-a]pyridine hydrochloride
6-Methyl-2,3-pyridinedicarboxylic acid
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