4-(Difluoromethyl)-2-methyl-3-nitropyridine-5-acetic acid
3-(Difluoromethyl)-5-methyl-6-nitropyridine-2-acetic acid
Ethyl 2-(chloromethyl)-3-(difluoromethyl)-5-methoxypyridine-6-acetate
Ethyl 2-(chloromethyl)-3-(difluoromethyl)-4-methoxypyridine-6-acetate