Methyl 2-(aminomethyl)-3-(difluoromethyl)-4-methylpyridine-6-carboxylate
2-(Difluoromethyl)-3-methyl-4-nitropyridine-5-acetic acid
Ethyl 3-(difluoromethyl)-6-methyl-2-nitropyridine-5-carboxylate
Ethyl 5-(difluoromethyl)-2-methyl-4-nitropyridine-3-carboxylate