1-Methyl-1H-pyrazolo[3,4-b]-pyridine-5-carboxylic acid
5-Bromo-1H-pyrrolo[2,3-b]pyridine-6-carboxylic acid
3-Bromo-7-chloro-1H-pyrazolo[4,3-c]pyridine
5-Methyl-4-(pyridin-4-yl)thiazol-2-amine
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