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Ethyl 2-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)nicotinate: BD2302781150561-58-298%; ￥1037.01g

2-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine: BD01178544610768-32-698%; ￥126.05g

3-Bromo-2-methylpyridine-5-boronic acid pinacol ester: BD4663132223051-53-297%; ￥942.0250mg

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