Ethyl 3-chloro-4-(difluoromethyl)-2-nitropyridine-6-carboxylate
5-Chloro-4-(difluoromethyl)-3-methylpyridine-2-carbonyl chloride
Ethyl 6-chloro-3-(difluoromethyl)-2-nitropyridine-4-carboxylate
Ethyl 3-chloro-6-(difluoromethyl)-4-methylpyridine-2-acetate