InChI=1/C17H18F2N2O4S/c1-11(2)21-26(23,24)15-5-3-4-12(10-15)16(22)20-13-6-8-14(9-7-13)25-17(18)19/h3-11,17,21H,1-2H3,(H,20,22)/f/h20H 1442C5F1D606A3B8