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