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