InChI=1/C21H24BrN3O4/c1-2-11-27-15-18(26)13-25(14-19-4-3-12-28-19)10-9-20-23-21(24-29-20)16-5-7-17(22)8-6-16/h2-8,12,18,26H,1,9-11,13-15H2/t18-/m1/s1 3B4FB6099355110D