InChI=1S/C41H44O21/c42-16-27-29(47)31(49)35(62-40-36(52)41(55,18-57-40)17-56-28(46)14-6-19-1-7-21(43)8-2-19)39(60-27)58-23-10-3-20(4-11-23)5-13-25(45)24-12-9-22(44)15-26(24)59-38-33(51)30(48)32(50)34(61-38)37(53)54/h1-15,27,29-36,38-40,42-44,47-52,55H,16-18H2,(H,53,54)/b13-5?,14-6+