Ethyl 3-amino-2-chloro-5-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 2-amino-4-chloro-3-(trifluoromethoxy)pyridine-5-carboxylate
3-Amino-6-chloro-4-(trifluoromethoxy)pyridine-2-acetic acid
4-Amino-3-chloro-2-(trifluoromethoxy)pyridine-5-acetic acid