InChI=1S/C26H28N2O12/c1-37-14-8-26(6-4-12(14)29,40-25-20(32)18(30)19(31)21(39-25)24(35)36)22-17(23(33)34)16-13(38-22)3-2-11-15(16)10(5-7-27)9-28-11/h2-4,6,8-9,17-22,25,28,30-32H,5,7,27H2,1H3,(H,33,34)(H,35,36)