5-(Chloromethyl)-3-hydroxy-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
3-(Chloromethyl)-5-hydroxy-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
2-Hydroxy-5-methyl-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
6-Hydroxy-4-methyl-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride