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