2-Fluoro-5-pyridylboronic acid, 6-fluoropyridin-3-ylboronic acid, 2-Fluoropyridine-5-boronic acid, 2-Fluoropyridin-5-ylboronic acid; 6-Fluoro-3-pyridinylboronic acid; 2-fluoropyridin-5-boronic acid; 6-fluoropyridine-3-boronic acid; 6-Fluoro-3-pyridylboronic Acid; 4-fluoro-3-pyridinylboronic acid;