InChI=1S/C18H19F3N4O3/c19-18(20,21)14-9-25(10-23-14)13(7-11-3-1-2-4-11)16(26)24-15-6-5-12(8-22-15)17(27)28/h5-6,8-11,13H,1-4,7H2,(H,27,28)(H,22,24,26)/t13-/m0/s1