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