1H-Indole-5-boronic acid, pinacol ester5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H -indole5-(4,4,5,5-四甲基-1,3,2-二氧杂硼烷-2-基)-1H-吲哚5-Indoleboronic acid pinacol ester5-吲哚硼酸频哪醇酯5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indole