InChI=1/C33H33BrN2O2/c34-29(21-25-13-5-1-6-14-25)31-32(37)30(22-26-15-7-2-8-16-26)35(23-27-17-9-3-10-18-27)33(38)36(31)24-28-19-11-4-12-20-28/h1-20,29-32,37H,21-24H2/t29-,30+,31+,32-/m0/s1 3ED0A014922F6BC7