3,5-Dibromo-2-chloro-4,6-dimethylpyridine
4-Bromo-1H-pyrrolo[2,3-c]pyridine-2-carboxylic acid
1-(Pyridin-4-ylmethyl)-1H-pyrrole-2,5-dione
6-Chloroimidazo[1,2-a]pyridine-3-carboxylic acid
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