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