4-Hydroxy-2-(trifluoromethoxy)pyridine-5-acetonitrile
3-(Difluoromethyl)-5-methyl-6-(trifluoromethoxy)pyridine-2-acetonitrile
3-(Difluoromethyl)-5-methyl-2-(trifluoromethoxy)pyridine-6-acetonitrile
5-Iodo-3-(trifluoromethoxy)pyridine-2-acetonitrile
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