InChI=1S/C19H19F3N2O3/c20-19(21,22)15-4-5-17(23-12-15)27-16-3-1-2-14(11-16)10-13-6-8-24(9-7-13)18(25)26/h1-5,11-13H,6-10H2,(H,25,26)