1,3(2H)-Pyridinedicarboxylic acid, 5,6-dihydro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-, 1-(1,1-dimethylethyl) 3-ethyl ester

1,3(2H)-Pyridinedicarboxylic acid, 5,6-dihydro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-, 1-(1,1-dimethylethyl) 3-ethyl ester