3-(Bromomethyl)-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-carbonyl chloride
3-(Bromomethyl)-4-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-sulfonyl chloride
3-(Bromomethyl)-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-5-carbonyl chloride
6-(Difluoromethyl)-2-iodopyridine-3-carboxylic acid