InChI=1S/C37H44N2O17/c1-14(2)7-8-16-13-17(9-11-20(16)52-34-25(43)23(41)24(42)29(54-34)32(46)47)31(45)39-21-22(40)18-10-12-19(15(3)27(18)53-33(21)48)51-35-26(44)28(55-36(38)49)30(50-6)37(4,5)56-35/h7,9-13,23-26,28-30,34-35,40-44H,8H2,1-6H3,(H2,38,49)(H,39,45)(H,46,47)