InChI=1S/C27H28O14/c1-8(2)5-6-11-9(3)21-13(7-12(11)28)38-22-14(25(36)39-21)10(4)16(29)17(30)15(22)26(37)41-27-20(33)18(31)19(32)23(40-27)24(34)35/h5,7,18-20,23,27-33H,6H2,1-4H3,(H,34,35)