Methyl 2,5-dibromo-4-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 3-chloro-5-fluoro-4-(trifluoromethoxy)pyridine-2-carboxylate
4-(Difluoromethyl)-2-methoxy-3-nitropyridine-6-sulfonyl chloride
Ethyl 4-cyano-5-(difluoromethyl)nicotinate
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