InChI=1S/C32H36N2O4/c1-18-8-7-9-23-15-19(2)21(4)29-26(16-22-17-33-25-11-6-5-10-24(22)25)34-31(38)32(23,29)28(36)13-12-27(35)30(37)20(3)14-18/h5-7,9-11,14-15,17-18,21,23,26,29,33H,8,12-13,16H2,1-4H3,(H,34,38)/t18-,21+,23-,26-,29-,32+/m0/s1