3-Amino-4-chloro-2-(trifluoromethoxy)pyridine-6-sulfonamide
3-Amino-6-(chloromethyl)-2-(trifluoromethoxy)pyridine-5-acetic acid
3-Amino-2-chloro-6-(trifluoromethoxy)pyridine-4-sulfonamide
5-Amino-2-(chloromethyl)-3-(trifluoromethoxy)pyridine-6-acetic acid