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