InChI=1/C15H18N4O2S/c1-3-7-18-13-11(14(20)19(8-4-2)15(18)21)16-12(17-13)10-6-5-9-22-10/h5-6,9H,3-4,7-8H2,1-2H3,(H,16,17)/f/h16H C3B506F65BBD31FD