7-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-3-oxa-9-aza-bicyclo[3.3.1]non-6-ene-9-carboxylic acid tert-butyl ester

7-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-3-oxa-9-aza-bicyclo[3.3.1]non-6-ene-9-carboxylic acid tert-butyl ester