InChI=1/C15H20N4OS/c1-18(9-11-3-4-11)10-19-15(21)16-14(17-19)12-5-7-13(20-2)8-6-12/h5-8,11H,3-4,9-10H2,1-2H3,(H,16,17,21)/p+1/fC15H21N4OS/h16,18H/q+1 137F9C89F89AB773