Methyl 3,4-dimethoxy-6-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 3,6-difluoro-2-(trifluoromethoxy)pyridine-4-carboxylate
Ethyl 3-amino-5-fluoro-4-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 5-amino-4-fluoro-2-(trifluoromethoxy)pyridine-3-carboxylate