InChI=1S/C27H30O15/c1-8-17(31)20(34)22(36)26(38-8)40-11-6-14(30)16-15(7-11)41-24(10-3-4-12(28)13(29)5-10)25(19(16)33)42-27-23(37)21(35)18(32)9(2)39-27/h3-9,17-18,20-23,26-32,34-37H,1-2H3