5-Chloro-3-fluoro-2-(trifluoromethoxy)pyridine-4-sulfonamide
6-Chloro-4-fluoro-3-(trifluoromethoxy)pyridine-2-sulfonamide
4-(Difluoromethyl)-3-methoxy-5-nitropyridine-2-sulfonyl chloride
Ethyl 2,6-dibromo-4-(trifluoromethoxy)pyridine-3-carboxylate
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