2-Cyano-6-(trifluoromethoxy)pyridine-3-sulfonyl chloride
4-Chloro-3-hydroxy-6-methoxy-2-(trifluoromethoxy)pyridine
5-Chloro-3-(difluoromethyl)-4-nitropyridine-2-carbonyl chloride
4-Iodo-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride
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