InChI=1S/C30H32O8/c1-2-23(19-9-5-3-6-10-19)24(20-11-7-4-8-12-20)21-13-15-22(16-14-21)36-17-18-37-30-27(33)25(31)26(32)28(38-30)29(34)35/h3-16,25-28,30-33H,2,17-18H2,1H3,(H,34,35)/b24-23+