InChI=1S/C27H28O16/c28-6-8-4-10-15(12(5-8)41-26-22(36)19(33)17(31)13(7-29)42-26)18(32)14-9(16(10)30)2-1-3-11(14)40-27-23(37)20(34)21(35)24(43-27)25(38)39/h1-5,13,17,19-24,26-29,31,33-37H,6-7H2,(H,38,39)