3-Hydroxy-6-(trifluoromethoxy)pyridine-2-sulfonamide
4-(Difluoromethyl)-5-methyl-2-(trifluoromethoxy)pyridine
4-(Difluoromethyl)-2-methyl-6-(trifluoromethoxy)pyridine
5-(Difluoromethyl)-3-methyl-2-(trifluoromethoxy)pyridine
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