InChI=1S/C34H47NO4.C4H4O4/c1-6-9-14-31-32(29-24-28(19-20-30(29)39-31)34(37)38-25(4)5)33(36)27-17-15-26(16-18-27)13-12-23-35(21-10-7-2)22-11-8-3;5-3(6)1-2-4(7)8/h15-20,24-25H,6-14,21-23H2,1-5H3;1-2H,(H,5,6)(H,7,8)/b;2-1+