Methyl 2-amino-3-nitro-5-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 6-amino-3-iodo-2-(trifluoromethoxy)pyridine-4-carboxylate
3-Bromo-6-chloro-2-(trifluoromethoxy)pyridine-4-methanol
3-Amino-6-nitro-2-(trifluoromethoxy)pyridine-4-carboxylic acid