InChI=1/C16H20N4O3S/c1-24(22,23)20-10-7-12(8-11-20)18-16(21)19-15-6-2-5-14-13(15)4-3-9-17-14/h2-6,9,12H,7-8,10-11H2,1H3,(H2,18,19,21)/f/h18-19H 87AAFC3B3FAB5919