3-Methoxy-2-nitro-5-(trifluoromethoxy)pyridine-6-carboxaldehyde
3-Methoxy-2-nitro-4-(trifluoromethoxy)pyridine-5-carboxaldehyde
3-(Bromomethyl)-6-methoxy-2-(trifluoromethoxy)pyridine-4-carboxylic acid
3-(Difluoromethyl)-6-iodo-4-(trifluoromethoxy)pyridine-2-carboxaldehyde