2-Chloro-4-mercapto-6-(trifluoromethyl)pyridine
6-Chloro-2-iodo-3-(trifluoromethyl)pyridine
4-Chloro-3-iodo-5-(trifluoromethyl)pyridine
3-Chloromethyl-2-iodo-5-(trifluoromethyl)pyridine
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