2-Bromo-3-chloro-6-(difluoromethyl)pyridine-4-carboxylic acid
5-Bromo-4-chloro-3-(difluoromethyl)-2-(trifluoromethyl)pyridine
2-Bromo-3-chloro-4-(difluoromethyl)pyridine-6-carboxylic acid
3-Bromo-4-chloro-2-(difluoromethyl)-5-(trifluoromethyl)pyridine