InChI=1S/C19H24N2O4S/c1-21(2)12-11-20-15-5-3-4-6-16(15)26-18(17(23)19(24)25)13-7-9-14(22)10-8-13/h3-10,17-18,20,22-23H,11-12H2,1-2H3,(H,24,25)