3-tert-Butyloxycarbonylamino-2-chloropyridine-5-boronicacidpinacolester
4-Methyl-3,4-dihydro-2H-pyrido[3,2-B][1,4]oxazine-7-boronicacidpinacolester
5-Chloro-2-ethoxypyridine-4-boronic acid pinacol ester
4-[(tert-Butoxycarbonyl)amino]pyridine-3-boronicacidpinacolester