InChI=1S/C33H36N4O7/c1-6-19-18(5)32(43)37-26(19)13-29-23(15-38)22(9-11-31(41)42)28(35-29)14-27-21(8-10-30(39)40)17(4)24(34-27)12-25-16(3)20(7-2)33(44)36-25/h6-7,12-13,34-35,38H,1-2,8-11,14-15H2,3-5H3,(H,36,44)(H,37,43)(H,39,40)(H,41,42)/b25-12-,26-13-