Ethyl 3,5-dimethoxy-4-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 4,5-dimethoxy-3-(trifluoromethoxy)pyridine-2-carboxylate
4-Amino-5-fluoro-3-(trifluoromethoxy)pyridine-2-carboxylic acid
4-Amino-3-fluoro-2-(trifluoromethoxy)pyridine-5-carboxylic acid