3-Methoxy-5-(pinacolboranato)pyridine5-Methoxy-3-pyridineboronic acid pinacol ester5-甲氧基-3-吡啶硼酸频哪醇酯3-Methoxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-pyridine(5-Methoxypyridin-3-yl)boronic acid pinacol ester(3-Methoxypyridin-5-yl)boronic acid pinacol ester2-(5-Methoxypyridin-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane5-Methoxy-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) pyridine5-甲氧基-3-(4,4,5,5-四甲基-1,3,2-二氧杂硼烷-2-基)吡啶