Methyl 4,5-difluoro-2-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 2-amino-5-bromo-3-(trifluoromethoxy)pyridine-6-carboxylate
4-Amino-6-bromo-2-(trifluoromethoxy)pyridine-3-acetic acid
Methyl 2-amino-4-bromo-6-(trifluoromethoxy)pyridine-3-carboxylate