Methyl 6-(difluoromethyl)-4-methyl-2-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 2-fluoro-4-(trifluoromethoxy)pyridine-5-carboxylate
Methyl 2-(difluoromethyl)-4-methyl-5-(trifluoromethoxy)pyridine-3-carboxylate
5-Fluoro-2-(trifluoromethoxy)pyridine-4-carboxylic acid