2-Cyano-3-methoxy-6-nitro-5-(trifluoromethoxy)pyridine
3-(Chloromethyl)-5-cyano-4-methoxy-2-(trifluoromethoxy)pyridine
2-Cyano-3-methoxy-5-nitro-4-(trifluoromethoxy)pyridine
6-(Chloromethyl)-4-cyano-2-methoxy-3-(trifluoromethoxy)pyridine
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