Ethyl 3-bromo-5-(bromomethyl)-2-(trifluoromethoxy)pyridine-4-carboxylate
 
Ethyl 2-bromo-5-(bromomethyl)-3-(trifluoromethoxy)pyridine-6-carboxylate
 
Methyl 2-bromo-6-(bromomethyl)-3-(trifluoromethoxy)pyridine-5-carboxylate
 
3-Bromo-5-(bromomethyl)-2-(trifluoromethoxy)pyridine-6-carboxylic acid