InChI=1/C19H18N2O5S/c1-9-5-6-12-13(7-9)18(24)21(17(12)23)8-14(22)20-16-15(19(25)26-4)10(2)11(3)27-16/h5-7H,8H2,1-4H3,(H,20,22)/f/h20H 8B5F8A3D415FE48E