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