4-(Difluoromethyl)-2-fluoro-5-(trifluoromethoxy)pyridine-3-carboxylic acid
3-Fluoro-5-hydroxy-4-(trifluoromethoxy)pyridine-2-carboxaldehyde
Ethyl 3-fluoro-5-methyl-4-(trifluoromethoxy)pyridine-2-carboxylate
5-(Difluoromethyl)-3-fluoro-2-(trifluoromethoxy)pyridine-4-carboxylic acid