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
5-(Bromomethyl)-2-methoxy-4-(trifluoromethoxy)pyridine-3-carboxylic acid