3-(Difluoromethyl)-2-nitro-5-(trifluoromethoxy)pyridine-4-carbonyl chloride
2-(Bromomethyl)-6-(difluoromethyl)-5-(trifluoromethoxy)pyridine-3-carbonyl chloride
6-(Difluoromethyl)-2-nitro-3-(trifluoromethoxy)pyridine-4-carbonyl chloride
2-(Bromomethyl)-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-5-carbonyl chloride