4-(Difluoromethyl)-3-iodo-6-(trifluoromethoxy)pyridine-2-carboxaldehyde
3-(Difluoromethyl)-2-methoxy-4-methyl-5-(trifluoromethoxy)pyridine
2-(Difluoromethyl)-6-iodo-3-(trifluoromethoxy)pyridine-5-carboxaldehyde
2-(Difluoromethyl)-5-methoxy-3-methyl-4-(trifluoromethoxy)pyridine