InChI=1S/C33H44O2/c1-27(2)15-11-18-30(5)21-13-23-31(6)22-12-19-28(3)16-9-10-17-29(4)20-14-24-32(7)25-26-33(34)35-8/h9-10,12-17,19-26H,11,18H2,1-8H3/b10-9+,19-12+,20-14+,23-13+,26-25+,28-16+,29-17+,30-21+,31-22+,32-24-