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