5-Chloro-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-carboxaldehyde
3-Chloro-2-(difluoromethyl)-4-iodo-6-(trifluoromethoxy)pyridine
4-Chloro-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxaldehyde
4-Chloro-3-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-carboxaldehyde