Methyl 5-amino-3-cyano-4-(difluoromethyl)pyridine-2-carboxylate
5-Amino-2-(fluoromethyl)-3-(trifluoromethoxy)pyridine-4-acetic acid
4-Amino-5-(fluoromethyl)-3-(trifluoromethoxy)pyridine-2-acetic acid
3-Amino-4-(fluoromethyl)-6-(trifluoromethoxy)pyridine-2-acetic acid