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