Tetrazolo[1,5-a]pyridine-8-carboxylic acid
4-Fluoro-1H-pyrrolo[2,3-b]pyridine-5-carboxylic acid
3-Chloro-1H-pyrrolo[3,2-b]pyridin-5-amine
5-Bromo-3,4-dichloropyridin-2-amine
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