InChI=1/C16H18N4OS/c21-16(17-10-12-4-2-1-3-5-12)18-14-8-6-13(7-9-14)15-11-22-20-19-15/h1-2,6-9,11-12H,3-5,10H2,(H2,17,18,21)/t12-/m0/s1/f/h17-18H 2A836D561F4DE50B