InChI=1S/C29H10Br8N2O4/c30-18-14-15(19(31)23(35)22(18)34)27(41)38(26(14)40)12-5-1-10(2-6-12)9-11-3-7-13(8-4-11)39-28(42)16-17(29(39)43)21(33)25(37)24(36)20(16)32/h1-8H,9H2