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