InChI=1/C21H21BrN2O3/c1-13-4-6-14(7-5-13)17(24(2)3)12-23-21(26)20-11-18(25)16-10-15(22)8-9-19(16)27-20/h4-11,17H,12H2,1-3H3,(H,23,26)/p+1/t17-/m1/s1/fC21H22BrN2O3/h23-24H/q+1 B2F8E39F4FB3088C