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