3-(Chloromethyl)-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine-4-carboxaldehyde
5-Bromo-3-(difluoromethyl)pyridine-2-carboxylic acid
3-(Chloromethyl)-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine-4-carboxylic acid
5-Bromo-4-(difluoromethyl)pyridine-2-carboxylic acid