InChI=1S/C33H38N4O6/c1-7-20-18(5)32(42)36-26(20)14-28-22(9-11-30(38)39)16(3)24(34-28)13-25-17(4)23(10-12-31(40)41)29(35-25)15-27-21(8-2)19(6)33(43)37-27/h13-15,34H,7-12H2,1-6H3,(H,36,42)(H,37,43)(H,38,39)(H,40,41)/b25-13-,26-14-,27-15-