3-(Bromomethyl)-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-carboxylic acid
5-(Chloromethyl)-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-3-carbonyl chloride
5-(Bromomethyl)-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-6-carboxylic acid
4-(Chloromethyl)-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-carbonyl chloride