Methyl 3-(bromomethyl)-5-(difluoromethyl)-4-(trifluoromethyl)pyridine-2-acetate
4-(Difluoromethyl)-6-nitro-2-(trifluoromethyl)pyridine-3-carbonyl chloride
4-(Difluoromethyl)-6-nitro-3-(trifluoromethyl)pyridine-2-carbonyl chloride
4-(Difluoromethyl)-2-nitro-3-(trifluoromethyl)pyridine-6-carbonyl chloride