2-(Chloromethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine-4-carboxylic acid
Methyl 5-(chloromethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine-6-carboxylate
4-(Difluoromethyl)-5-hydroxy-3-methyl-2-(trifluoromethoxy)pyridine
2-(Difluoromethyl)-6-hydroxy-3-methyl-4-(trifluoromethoxy)pyridine