3-Cyano-2,4-diiodo-6-(trifluoromethoxy)pyridine
6-Cyano-2,3-dimethoxy-4-(trifluoromethoxy)pyridine
5-Cyano-2,3-difluoro-4-(trifluoromethoxy)pyridine
2-Cyano-4,5-dichloro-3-(trifluoromethoxy)pyridine
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