4-(Ethoxycarbonyl)pyridine-2-boronic acid pinacol ester
5-Bromo-3-pyridineboronic acid pinacol ester
6-(4-Boc-1-piperazinyl)pyridine-3-boronic acid pinacol ester
4-(Pyrrolidine-1-sulfonyl)phenylboronic acid, pinacol ester