Ethyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate4-乙氧羰基苯硼酸频哪醇酯Ethyl 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate4-碳乙氧基苯硼酸频哪醇酯4-Ethoxycarbonylphenylboronic acid pinacol ester4-Carboethoxyphenylboronic acid pinacol ester4-(4,4,5,5-四甲基-1,3,2-二氧硼戊烷-2-基)苯甲酸乙酯