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