4-Chloro-2-methyl-6-(trifluoromethyl)pyridine
Methyl 2-fluoro-6-nitro-3-(trifluoromethoxy)pyridine-4-carboxylate
5-(Difluoromethyl)-2-methoxy-4-nitropyridine-3-sulfonyl chloride
5-(Difluoromethyl)-3-hydroxy-4-iodopyridine-2-sulfonyl chloride
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