InChI=1S/C27H30N8O4/c1-5-6-13-33-22-23(31-26(33)34-14-9-12-20(24(34)37)29-17(3)36)32(4)27(39)35(25(22)38)15-21-28-16(2)18-10-7-8-11-19(18)30-21/h7-8,10-11,20,24,37H,9,12-15H2,1-4H3,(H,29,36)/t20-,24?/m1/s1