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