InChI=1S/C28H40O9/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-16-19-17-15-18-20(29)21(19)27(35)37-28-24(32)22(30)23(31)25(36-28)26(33)34/h2,7-8,15,17-18,22-25,28-32H,1,3-6,9-14,16H2,(H,33,34)/b8-7+