Methyl 6-amino-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxylate
4-Bromo-3-cyano-2-(trifluoromethoxy)pyridine-5-acetic acid
Ethyl 3-amino-2-(chloromethyl)-5-(trifluoromethoxy)pyridine-4-carboxylate
4-Bromo-6-cyano-3-(trifluoromethoxy)pyridine-2-acetic acid