3-(Bromomethyl)-4-cyano-5-(trifluoromethoxy)pyridine
3-(Bromomethyl)-2-cyano-6-(trifluoromethoxy)pyridine
3-(Bromomethyl)-2-cyano-4-(trifluoromethoxy)pyridine
2-(Chloromethyl)-4-cyano-6-(trifluoromethoxy)pyridine
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