 
3-Bromo-2-(difluoromethyl)-6-iodo-4-(trifluoromethoxy)pyridine
 
 
3-Bromo-5-methoxy-2-(trifluoromethoxy)pyridine-6-acetonitrile
 
 
2-Bromo-6-(chloromethyl)-3-(trifluoromethoxy)pyridine-5-methanol
 
 
3-Bromo-2-(difluoromethyl)-4-iodo-6-(trifluoromethoxy)pyridine