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