InChI=1/C16H20F3N3O4/c1-2-26-14(24)10-22(8-7-13(23)21-15(20)25)9-11-3-5-12(6-4-11)16(17,18)19/h3-6H,2,7-10H2,1H3,(H3,20,21,23,25)/f/h21H,20H2 51B77518512C20DA