InChI=1S/C27H28O12/c1-26(2,33)18-7-11-6-13-16(9-15(11)36-18)35-10-27(14-5-4-12(34-3)8-17(14)37-23(13)27)39-25-21(30)19(28)20(29)22(38-25)24(31)32/h4-9,19-23,25,28-30,33H,10H2,1-3H3,(H,31,32)