5-(Difluoromethyl)-4-hydroxy-3-(trifluoromethoxy)pyridine-2-carboxaldehyde
3-(Aminomethyl)-4-iodo-5-(trifluoromethoxy)pyridine-2-carboxaldehyde
5-(Chloromethyl)-2-hydroxy-3-methoxy-6-(trifluoromethoxy)pyridine
4-Methyl-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride