InChI=1S/C22H25BrN2O7S2/c1-5-31-22(26)20-18(13-33(27)14-9-7-6-8-10-14)25(4)17-11-16(23)21(32-34(28,29)30)15(19(17)20)12-24(2)3/h6-11H,5,12-13H2,1-4H3,(H,28,29,30)/p-1