3-Fluoropyridine-4-boronic acid pinacol ester3-氟吡啶-4-硼酸频哪醇酯3-Fluoro-4-pyridineboronic acid pinacol ester3-氟-4-(4,4,5,5-四甲基-1,3,2-二氧杂环硼戊烷-2-基)吡啶3-Fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxoborolan-2-yl)pyridine3-Fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine3-Fluoropyridine-4-boronic acid pinacol ester3-氟吡啶-4-硼酸-频哪醇酯