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