InChI=1S/C16H19N3O2S/c1-11(18-12(2)20)16-19-14(10-22-16)15(21)17-9-8-13-6-4-3-5-7-13/h3-7,10-11H,8-9H2,1-2H3,(H,17,21)(H,18,20)/t11-/m1/s1