InChI=1S/C18H16N4O3S/c23-17(20-25)14-6-7-15(26-14)18(24)21-8-9-22-13(10-19-16(22)11-21)12-4-2-1-3-5-12/h1-7,10,25H,8-9,11H2,(H,20,23)