2-(Methylcarbamoyl)pyridine-5-boronic acid, pinacol esterN-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine-2-carboxamide6-[(Methylamino)carbonyl]pyridine-3-boronic acid, pinacol ester6-(Methylcarbamoyl)pyridine-3-boronic acid, pinacol ester