InChI=1/C13H18N4O3S/c1-3-12-15-8-13(17-12)21(18,19)16-7-9-6-10(14)4-5-11(9)20-2/h4-6,8,16H,3,7,14H2,1-2H3,(H,15,17)/f/h17H D002E08B7653CF3A