Ethyl 6-BromoH-imidazo[1,2-a]pyridine-3-carboxylate
6-Bromo-4H-imidazo[4,5-b]pyridine
Thieno[2,3-c]pyridine
6-Methoxy-3-nitro-pyridine-2-carboxylic acid methyl ester
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