Methyl 3-chloro-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-carboxylate
3-Bromo-6-(difluoromethyl)-2-fluoropyridine-5-acetic acid
Methyl 5-amino-4-cyano-2-(difluoromethyl)pyridine-3-acetate
4-Iodo-2-nitro-3-(trifluoromethoxy)pyridine-5-acetonitrile