Ethyl 5-chloro-4-fluoro-3-(trifluoromethoxy)pyridine-2-carboxylate
3-(Difluoromethyl)-2-nitropyridine-4-sulfonyl chloride
6-(Difluoromethyl)-2-methoxy-3-nitropyridine-4-sulfonyl chloride
5-Hydroxymethyl-3-methyl-2-(trifluoromethyl)pyridine
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