5-(Difluoromethyl)-3-hydroxy-4-(trifluoromethoxy)pyridine-2-carboxylic acid
3-Iodo-4-methoxy-5-methyl-2-(trifluoromethoxy)pyridine
2-Hydroxy-3-nitro-6-(trifluoromethoxy)pyridine-5-sulfonamide
3-(Difluoromethyl)-5-hydroxy-2-(trifluoromethoxy)pyridine-4-carboxylic acid