InChI=1/C16H16F2N2O4S/c1-10-15(25(22,23)20-4-2-3-5-20)9-14(24-10)16(21)19-13-7-11(17)6-12(18)8-13/h6-9H,2-5H2,1H3,(H,19,21)/f/h19H 6F67F877514D0C43