Methyl 4-(difluoromethyl)-5-methyl-2-nitropyridine-3-acetate
3-(Chloromethyl)-4-(difluoromethyl)-2-methoxypyridine-6-acetic acid
Ethyl 2-(difluoromethyl)-5-methyl-4-nitropyridine-3-carboxylate
3-(Chloromethyl)-2-(difluoromethyl)-6-methoxypyridine-5-acetic acid