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