(4-Cyanomethyl)benzeneboronic acid, pinacol ester4-(Cyanomethyl)phenylboronic acid pinacol cyclic ester2-[(4-Cyanomethyl)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane4-(Cyanomethyl)benzeneboronic acid pinacol ester4-氰甲基苯硼酸频哪酯4-(CYANOMETHYL)BENZENEBORONIC ACID PINACOL ESTER