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