InChI=1/C20H22F2N2O4/c1-20(2,8-11-5-12(21)7-13(22)6-11)23-9-16(26)14-3-4-15(25)18-19(14)28-10-17(27)24-18/h3-7,16,23,25-26H,8-10H2,1-2H3,(H,24,27)/p+1/t16-/m0/s1/fC20H23F2N2O4/h23-24H/q+1 1DED365F76FB6F75