4-Amino-2-(difluoromethyl)-6-nitro-3-(trifluoromethoxy)pyridine
4-Amino-2-(difluoromethyl)-3-nitro-6-(trifluoromethoxy)pyridine
Methyl 2-amino-5-(chloromethyl)-6-(trifluoromethoxy)pyridine-3-carboxylate
3-Amino-5-(difluoromethyl)-6-nitro-2-(trifluoromethoxy)pyridine