InChI=1S/C27H28O15/c1-38-23-14(22-18(33)15(30)11(29)8-39-22)21-13(10(28)7-12(40-21)9-5-3-2-4-6-9)16(31)24(23)41-27-20(35)17(32)19(34)25(42-27)26(36)37/h2-7,11,15,17-20,22,25,27,29-35H,8H2,1H3,(H,36,37)