InChI=1/C21H21BrN2O2/c1-21(2,3)24(20(26)16-9-5-6-10-17(16)22)13-15-12-14-8-4-7-11-18(14)23-19(15)25/h4-12,15H,13H2,1-3H3/p+1/t15-/m0/s1/fC21H22BrN2O2/h23H/q+1 56AC7B16C11C3B38