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