4-(Difluoromethyl)-2-hydroxy-5-nitro-3-(trifluoromethoxy)pyridine
5-(Difluoromethyl)-3-hydroxy-2-nitro-4-(trifluoromethoxy)pyridine
Methyl 2-(bromomethyl)-6-fluoro-3-(trifluoromethoxy)pyridine-5-carboxylate
2-Hydroxy-4-methoxy-3-methyl-5-(trifluoromethoxy)pyridine