InChI=1/C13H18N4O2S/c1-9-8-17-12(14-9)20-11(16-17)15-10-2-4-13(5-3-10)18-6-7-19-13/h8,10H,2-7H2,1H3,(H,15,16)/f/h15H 01E915312164F852