InChI=1/C14H21BrN2O2/c1-4-7-16-14(18)10-17(2)9-11-8-12(15)5-6-13(11)19-3/h5-6,8H,4,7,9-10H2,1-3H3,(H,16,18)/f/h16H 7DBECF5724C305C8