4-Fluoro-2-(trifluoromethoxy)pyridine-5-sulfonamide
3-(Difluoromethyl)-2-methyl-4-(trifluoromethoxy)pyridine-6-carboxylic acid
3-Fluoro-4-(trifluoromethoxy)pyridine-5-sulfonamide
2-(Difluoromethyl)-6-methyl-3-(trifluoromethoxy)pyridine-5-carboxylic acid