6-(Chloromethyl)-4-cyano-2-nitro-3-(trifluoromethoxy)pyridine
2-(Chloromethyl)-3-cyano-4-nitro-6-(trifluoromethoxy)pyridine
2-(Chloromethyl)-3-cyano-5-nitro-4-(trifluoromethoxy)pyridine
5-Chloro-2-nitro-3-(trifluoromethoxy)pyridine-4-acetic acid
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