3-Iodo-2,5-di(pyridin-4-yl)pyridine
4-Methyl-3-nitro-2,5-di(pyridin-4-yl)pyridine
4-Methoxy-3,5-di(pyridin-4-yl)pyridine
2-Methoxy-3,5-di(pyridin-4-yl)pyridine
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