2-Amino-4-(difluoromethyl)-3-nitropyridine-5-acetic acid
Ethyl 5-amino-2-(difluoromethyl)-3-nitropyridine-4-carboxylate
Ethyl 3-amino-5-(difluoromethyl)-2-nitropyridine-4-carboxylate
3-Amino-4-(chloromethyl)-5-(difluoromethyl)-2-(trifluoromethyl)pyridine