InChI=1S/C27H28O17/c28-9-5-13-15(14(6-9)42-27-21(35)17(31)19(33)23(44-27)25(38)39)11(29)7-12(41-13)8-1-3-10(4-2-8)40-26-20(34)16(30)18(32)22(43-26)24(36)37/h1-6,12,16-23,26-28,30-35H,7H2,(H,36,37)(H,38,39)