2-(4-(4，4，5，5-tetramethyl-1，3，2-dioxaborolan-2-yl)-2，3-dihydro-1H-pyrrol-1-yl)ethyl acetate
2-(4-(4，4，5，5-tetramethyl-1，3，2-dioxaborolan-2-yl)-2，3-dihydro-1H-pyrrol-1-yl)ethyl acetate
2-(4-(4，4，5，5-tetramethyl-1，3，2-dioxaborolan-2-yl)-2，3-dihydro-1H-pyrrol-1-yl)ethyl acetate 95%