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