2-(Difluoromethyl)-6-hydroxy-3-nitropyridine-4-carboxylic acid
3-(3-Fluoro-5-nitrobenzoyl)pyridine
Methyl 6-fluoro-3-hydroxy-2-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 3-(chloromethyl)-2-methoxy-4-(trifluoromethoxy)pyridine-5-acetate
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