Methyl 2-chloro-6-nitro-4-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 2-chloro-5-nitro-6-(trifluoromethoxy)pyridine-3-carboxylate
3-Chloro-2-cyano-6-methyl-4-(trifluoromethoxy)pyridine
Methyl 2-chloro-5-nitro-4-(trifluoromethoxy)pyridine-3-carboxylate