4-(Chloromethyl)-2-methyl-6-(perchlorophenyl)pyridine
4-(Chloromethyl)-2-methyl-3-(perchlorophenyl)pyridine
3-(Chloromethyl)-6-methyl-2-(perchlorophenyl)pyridine
3-(Chloromethyl)-5-methyl-2-(perchlorophenyl)pyridine
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