Product Application： Quinoxaline-6-boronic acid pinacol ester is a common reactant of a Suzuki coupling reaction that can be used: 1.To prepare quinoxalin based PI3Kδ inhibitors. 2.As a substrate in the Cu(II) catalyzed [11C]-radiocyanation of arylboronic acids. 3.To prepare 6-quinoxaline boronic acid, which is used as a substrate in the silver-mediated fluorination of boronic acids.