InChI=1/C15H18N4OS/c1-2-3-10-4-6-11(7-5-10)12(20)9-21-15-18-13(16)8-14(17)19-15/h4-8H,2-3,9H2,1H3,(H4,16,17,18,19)/f/h16-17H2 7C2A169B5288D1D1