 
5-Iodo-3-nitro-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
 
 
Methyl 3-hydroxy-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-5-carboxylate
 
 
4-Iodo-6-methyl-2-(trifluoromethoxy)pyridine-3-carboxylic acid
 
 
Ethyl 4-hydroxy-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-acetate