InChI=1S/C17H21BrN2O2/c18-13-5-4-6-14(10-13)19-17(22)12-9-16(21)20(11-12)15-7-2-1-3-8-15/h4-6,10,12,15H,1-3,7-9,11H2,(H,19,22)/t12-/m0/s1