Ethyl 3-bromo-4-(difluoromethyl)-2-(trifluoromethyl)pyridine-5-acetate
Ethyl 3-bromo-2-(difluoromethyl)-6-(trifluoromethyl)pyridine-4-acetate
3-Bromo-6-(difluoromethyl)-2-nitro-4-(trifluoromethyl)pyridine
Ethyl 3-bromo-2-(difluoromethyl)-5-(trifluoromethyl)pyridine-4-acetate