InChI=1/C18H23N2O4S/c1-13-10-14(2)20(15(3)11-13)12-18(21)24-9-8-16-4-6-17(7-5-16)25(19,22)23/h4-7,10-11H,8-9,12H2,1-3H3,(H2,19,22,23)/q+1/f/h19H2 DDF95736E8133432