2-Cyano-3-(difluoromethyl)-4-hydroxypyridine-5-sulfonyl chloride
2-Methoxy-6-(trifluoromethoxy)pyridine-4-sulfonyl chloride
5-(3,4-Dichlorophenyl)-2-(trifluoromethyl)pyridine
3-Chloro-5-(difluoromethyl)-2-methyl-6-(trifluoromethoxy)pyridine
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