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