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