InChI=1S/C28H38O8/c1-21(10-6-12-23(3)18-19-35-27(33)16-14-25(29)30)8-5-9-22(2)11-7-13-24(4)20-36-28(34)17-15-26(31)32/h9-10,13-18H,5-8,11-12,19-20H2,1-4H3,(H,29,30)(H,31,32)/b16-14+,17-15+,21-10+,22-9+,23-18+,24-13+