InChI=1S/C37H34N2O7/c1-37(15-14-24-34(46-37)23-8-7-9-27(41-4)33(23)39(3)36(24)40)18-26-31-21(12-13-28(42-5)35(31)43-6)22-11-10-20-16-29-30(45-19-44-29)17-25(20)32(22)38(26)2/h7-17,26H,18-19H2,1-6H3