InChI=1/C16H18N4O2S/c1-9-5-4-6-11-10(2)14(22-13(9)11)15(21)17-8-7-12-18-19-16(23)20(12)3/h4-6H,7-8H2,1-3H3,(H,17,21)(H,19,23)/f/h17,19H B9D2795BE8842DFE