InChI=1/C16H18N2O3S/c17-22(20,21)15-8-6-13(7-9-15)10-11-18-16(19)12-14-4-2-1-3-5-14/h1-9H,10-12H2,(H,18,19)(H2,17,20,21)/f/h18H,17H2 EAF19C193DD3E661