Ethyl 2-amino-5-chloro-3-(trifluoromethoxy)pyridine-4-carboxylate
2-Amino-6-fluoro-3-(fluoromethyl)-4-(trifluoromethoxy)pyridine
6-Amino-3-fluoro-4-(fluoromethyl)-2-(trifluoromethoxy)pyridine
2-Amino-5-fluoro-3-(fluoromethyl)-4-(trifluoromethoxy)pyridine