5-Chloro-2-(difluoromethyl)-4-(fluoromethyl)pyridine
2-Chloro-5-(difluoromethyl)-4-(trifluoromethyl)pyridine
4-Chloro-5-(difluoromethyl)-2-(fluoromethyl)pyridine
2-Chloro-4-(difluoromethyl)-6-(trifluoromethyl)pyridine
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