InChI=1S/C27H31Br4N7O6/c1-42-22-17(30)10-27(23(39)20(22)31)11-19(38-44-27)25(41)34-4-2-6-43-21-15(28)7-13(8-16(21)29)9-18(32)24(40)35-5-3-14-12-36-26(33)37-14/h7-8,10,12,18,23,39H,2-6,9,11,32H2,1H3,(H,34,41)(H,35,40)(H3,33,36,37)/t18-,23+,27-/m0/s1