InChI=1/C16H20N3S/c1-18(2)11-5-7-13-15(9-11)20-16-10-12(19(3)4)6-8-14(16)17-13/h5-10,13,17H,1-4H3/q+1/t13-/m1/s1 DC401120A3241F56