InChI=1S/C27H28O15/c28-8-14-17(31)18(32)20(34)24(40-14)16-11(30)7-13(41-27-22(36)19(33)21(35)25(42-27)26(37)38)15-10(29)6-12(39-23(15)16)9-4-2-1-3-5-9/h1-7,14,17-22,24-25,27-28,30-36H,8H2,(H,37,38)