Methyl 6-amino-4-nitro-3-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 3-amino-4-methyl-5-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 3-amino-2-methyl-6-(trifluoromethoxy)pyridine-5-carboxylate
2-Amino-6-nitro-3-(trifluoromethoxy)pyridine-4-acetic acid