InChI=1S/C33H36N4O7/c1-7-19-16(3)23(36-30(19)42)13-22-17(4)20(9-11-28(38)39)25(34-22)14-26-21(10-12-29(40)41)18(5)24(35-26)15-27-33(8-2)32(6,44-33)31(43)37-27/h7-8,13,15,34-35H,1-2,9-12,14H2,3-6H3,(H,36,42)(H,37,43)(H,38,39)(H,40,41)/b23-13-,27-15-