4-Chloro-2-hydroxy-3-(trifluoromethoxy)pyridine-6-carboxaldehyde
2-Bromo-6-methoxy-4-(trifluoromethoxy)pyridine-3-acetic acid
3-Chloro-5-hydroxy-6-(trifluoromethoxy)pyridine-2-carboxaldehyde
5-Bromo-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine-2-carboxylic acid