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