Ethyl 3-(chloromethyl)-2-(difluoromethyl)-5-methoxypyridine-6-carboxylate
3-(Chloromethyl)-6-(difluoromethyl)-2-methoxypyridine-5-carboxaldehyde
Ethyl 3-(chloromethyl)-2-(difluoromethyl)-4-methoxypyridine-5-carboxylate
5-(Chloromethyl)-2-(difluoromethyl)-3-methoxypyridine-6-carboxaldehyde