InChI=1S/C27H38O8/c28-22-23(29)25(26(31)32)35-27(24(22)30)34-20-16-12-14-19(17-20)13-10-8-6-4-2-1-3-5-7-9-11-15-21-18-33-21/h3,5,9,11-12,14,16-17,21-25,27-30H,1-2,4,6-8,10,13,15,18H2,(H,31,32)/b5-3+,11-9+