InChI=1S/C27H26O16/c1-7-17(31)19(33)21(35)24(40-7)16-11(30)6-14-15(18(16)32)10(29)5-12(41-14)8-2-3-9(28)13(4-8)42-27-23(37)20(34)22(36)25(43-27)26(38)39/h2-7,19-25,27-28,30,32-37H,1H3,(H,38,39)