InChI=1S/C31H32N4O3/c1-22(36)34-28(19-23-11-5-3-6-12-23)31(38)35(2)29(20-24-13-7-4-8-14-24)30(37)32-18-17-25-21-33-27-16-10-9-15-26(25)27/h3-18,21,28-29,33H,19-20H2,1-2H3,(H,32,37)(H,34,36)/b18-17-/t28-,29-/m0/s1