2-Bromo-4-methyl-3,5-di(pyridin-4-yl)pyridine
2-Bromo-4-methyl-3,5-di(pyridin-3-yl)pyridine
6-Bromo-2-chloro-3-(pyridin-4-yl)pyridine
6-Bromo-2-chloro-3-(pyridin-3-yl)pyridine
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