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