InChI=1/C15H20N2O3S/c1-9(2)13-11-8-10(6-7-12(11)16-14(13)18)21(19,20)17-15(3,4)5/h6-8,17H,1-5H3,(H,16,18)/f/h16H 6D748FAD4279F1BD