Ethyl 5-cyano-2-fluoro-3-(trifluoromethoxy)pyridine-6-acetate
2-(Difluoromethyl)-4-fluoro-3-methoxy-5-(trifluoromethoxy)pyridine
Ethyl 4-cyano-3-fluoro-6-(trifluoromethoxy)pyridine-2-acetate
3-Fluoro-2-nitro-4-(trifluoromethoxy)pyridine-6-acetic acid