8-Chloro-imidazo[1,2-a]pyridine-2-carboxylic acid ethyl ester
5-Oxo-4,5-dihydro-3h-imidazo[4,5-b]pyridine-6-carboxylic acid
5-Methyl-pyridine-2-sulfonyl chloride
3-(Cyanomethyl)-4-nitropyridine1-oxide
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