InChI=1S/C24H19N3O5S/c1-27-22(24(29)26-20-13-7-8-16-25-20)23(18-11-5-6-12-19(18)33(27,30)31)32-21(28)15-14-17-9-3-2-4-10-17/h2-16H,1H3,(H,25,26,29)/b15-14+