InChI=1S/C19H20N2O5S/c1-11(22)13-4-7-15(20-9-13)16(23)10-26-14-5-2-12(3-6-14)8-17-18(24)21-19(25)27-17/h2-7,9,11,16-17,22-23H,8,10H2,1H3,(H,21,24,25)