3-Bromo-2-methoxy-4-(trifluoromethoxy)pyridine-6-acetic acid
5-Bromo-2-(chloromethyl)-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine
2-Bromo-6-methoxy-5-(trifluoromethoxy)pyridine-3-acetic acid
4-Bromo-5-(chloromethyl)-3-(difluoromethyl)-2-(trifluoromethoxy)pyridine