3-Chloro-4-nitro-6-(trifluoromethoxy)pyridine-2-sulfonyl chloride
Ethyl 4-chloro-3-nitro-5-(trifluoromethoxy)pyridine-2-carboxylate
2-Chloro-6-nitro-3-(trifluoromethoxy)pyridine-5-sulfonyl chloride
Ethyl 3-chloro-2-nitro-5-(trifluoromethoxy)pyridine-4-carboxylate