Ethyl 2-(difluoromethyl)-3-fluoro-6-methoxypyridine-5-acetate
4-(Aminomethyl)-6-(difluoromethyl)-3-fluoropyridine-2-acetic acid
Methyl 5-(difluoromethyl)-2-fluoro-4-methoxypyridine-3-acetate
3-(Chloromethyl)-2-(difluoromethyl)-4-fluoro-6-nitropyridine