InChI=1/C18H20N2OS/c19-17(18(21)20-10-11-22-13-20)12-14-6-8-16(9-7-14)15-4-2-1-3-5-15/h1-9,17H,10-13,19H2/t17-/m0/s1 092D8F507C083E31