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