InChI=1/C20H18FNO3/c1-24-15-6-7-17-16-8-9-22(11-13-2-4-14(21)5-3-13)12-18(16)20(23)25-19(17)10-15/h2-7,10H,8-9,11-12H2,1H3/p+1/fC20H19FNO3/h22H/q+1 5BA2CFBA0AC31E3E