InChI=1/C20H18FNO3/c1-12(2)22-10-15-17(24-11-22)8-7-14-19(23)18(25-20(14)15)9-13-5-3-4-6-16(13)21/h3-9,12H,10-11H2,1-2H3/b18-9- EFA0BA5050561899