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