4-Chloro-5-(difluoromethyl)-2-nitro-3-(trifluoromethoxy)pyridine
Methyl 4-bromo-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-carboxylate
4-Bromo-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-acetic acid
4-Bromo-3-(difluoromethyl)-5-(trifluoromethoxy)pyridine-2-acetic acid