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