InChI=1S/C27H32O18/c28-7-12-16(33)17(34)20(37)24(44-12)27(42)13(30)6-11(29)15(23(27)39)10(5-14(31)32)8-1-3-9(4-2-8)43-26-21(38)18(35)19(36)22(45-26)25(40)41/h1-4,6,10,12,16-22,24,26,28-29,33-39,42H,5,7H2,(H,31,32)(H,40,41)