InChI=1/C17H20N2O2S/c1-12(19-10-16(20)15-8-9-22-11-15)2-3-13-4-6-14(7-5-13)17(18)21/h4-9,11-12,19H,2-3,10H2,1H3,(H2,18,21)/t12-/m1/s1/f/h18H2 A3BC95BEDCCB16D3