Methyl 2-chloro-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine-6-acetate
5-Chloro-2-(fluoromethyl)-3-nitro-4-(trifluoromethoxy)pyridine
3-Chloro-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-acetic acid
6-Chloro-2-nitro-4-(trifluoromethoxy)pyridine-3-acetic acid