2-Hydroxy-4-iodo-6-(trifluoromethoxy)pyridine
3-(Difluoromethyl)-5-methyl-4-(trifluoromethoxy)pyridine-2-carboxaldehyde
4-(Chloromethyl)-3,5-difluoro-2-(trifluoromethoxy)pyridine
5-(Difluoromethyl)-4-methyl-2-(trifluoromethoxy)pyridine-3-carboxaldehyde