2-Bromo-5-chloro-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine
2-Bromo-5-chloro-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine
3-Bromo-6-chloro-2-(fluoromethyl)-4-(trifluoromethoxy)pyridine
4-Bromo-5-chloro-2-(fluoromethyl)-3-(trifluoromethoxy)pyridine