4-Iodo-6-methoxy-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride
5-(Difluoromethyl)-4-hydroxy-2-methyl-3-(trifluoromethoxy)pyridine
3-(Difluoromethyl)-4-hydroxy-5-methyl-2-(trifluoromethoxy)pyridine
Methyl 6-(chloromethyl)-4-hydroxy-3-(trifluoromethoxy)pyridine-2-acetate