Methyl 2-bromo-3-cyano-6-(trifluoromethoxy)pyridine-4-carboxylate
4-Amino-3-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-acetic acid
Methyl 2-bromo-3-cyano-4-(trifluoromethoxy)pyridine-6-carboxylate
4-Amino-2-(difluoromethyl)-6-(trifluoromethoxy)pyridine-3-acetic acid