methyl 5-(pyridin-2-yl)pyridine-3-carboxylate
methyl 5-(pyridin-2-yl)pyridine-3-carboxylate ??
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methyl 5-(pyridin-2-yl)pyridine-3-carboxylate C??? ??, ??, ??
methyl 5-(pyridin-2-yl)pyridine-3-carboxylate ?? ?? ? ???
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methyl 5-(pyridin-2-yl)pyridine-3-carboxylate ?? ??
???( 0)?? ??