2-Chloro-5-methylpyridine-3-boronicacidpinacolester
5-Bromo-2-ethoxypyridine-3-boronic acid pinacol ester
2-Fluoro-6-methylpyridine-3-boronicacidpinacolester
5-Chloro-2-isoproxypyridine-4-boronic acid pinacol ester