InChI=1S/C33H36N4O7/c1-6-19-18(5)32(43)36-26(19)12-24-16(3)21(8-10-30(39)40)27(34-24)14-28-22(9-11-31(41)42)17(4)25(35-28)13-29-23(15-38)20(7-2)33(44)37-29/h6-7,12-13,34-35,38H,1-2,8-11,14-15H2,3-5H3,(H,36,43)(H,37,44)(H,39,40)(H,41,42)/b26-12-,29-13-