InChI=1/C16H16N2O3S/c1-10-8-11(18(20)21)6-7-14(10)17-16(19)13-9-22-15-5-3-2-4-12(13)15/h6-9H,2-5H2,1H3,(H,17,19)/f/h17H 796B309B178CE1D6