InChI=1/C16H16N2O5S/c1-9-7-13(22-3)14(8-10(9)2)24(20,21)18-12-6-4-5-11-15(12)23-16(19)17-11/h4-8,18H,1-3H3,(H,17,19)/f/h17H 7D8AF4CE69A4FCAE