InChI=1S/C16H19F2N3O4/c1-3-16(4-2)13(23)21(15(24)20-16)9-12(22)19-10-5-7-11(8-6-10)25-14(17)18/h5-8,14H,3-4,9H2,1-2H3,(H,19,22)(H,20,24)