5-Chlorothiophene-2-boronic acid pinacol ester
3-Chloropyridine-4-boronic acid pinacol ester
3-Bromo-2,6-difluorophenylboronic acid pinacol ester
2-(4-Tert-butoxycarbonylpiperazin-1-yl)pyridine-4-boronic acid, pinacol ester