InChI=1S/C30H54O9/c1-2-3-4-14-17-20-23(31)21-18-15-12-10-8-6-5-7-9-11-13-16-19-22-24(32)38-30-27(35)25(33)26(34)28(39-30)29(36)37/h18,21,23,25-28,30-31,33-35H,2-17,19-20,22H2,1H3,(H,36,37)/b21-18-