InChI=1S/C33H34N2O5/c36-31-29(23-39-27-17-9-3-10-18-27)34(21-25-13-5-1-6-14-25)33(38)35(22-26-15-7-2-8-16-26)30(32(31)37)24-40-28-19-11-4-12-20-28/h1-20,29-32,36-37H,21-24H2/t29-,30-,31+,32+/m1/s1