Methyl 2-fluoro-6-(trifluoromethoxy)pyridine-3-carboxylate
3-(Fluoromethyl)-5-methyl-2-(trifluoromethoxy)pyridine-4-carboxaldehyde
Methyl 2-fluoro-5-(trifluoromethoxy)pyridine-3-carboxylate
5-(Fluoromethyl)-4-methyl-3-(trifluoromethoxy)pyridine-2-carboxaldehyde