InChI=1/C21H25FN2O4/c1-2-27-21(26)16-24(14-17-8-10-18(22)11-9-17)15-20(25)23-12-13-28-19-6-4-3-5-7-19/h3-11H,2,12-16H2,1H3,(H,23,25)/p+1/fC21H26FN2O4/h23-24H/q+1 31A1F139E3281018