InChI=1S/C27H22O20/c28-9-1-6(23(38)39)3-12(15(9)32)44-25(42)7-2-10(29)16(33)13(4-7)45-26(43)8-5-11(30)21(18(35)14(8)31)46-27-20(37)17(34)19(36)22(47-27)24(40)41/h1-5,17,19-20,22,27-37H,(H,38,39)(H,40,41)