InChI=1/C12H15F3N4O4/c13-12(14,15)6-16-9(22)17-7(20)5-19-8(21)11(18-10(19)23)3-1-2-4-11/h1-6H2,(H,18,23)(H2,16,17,20,22)/f/h16-18H E924EAD2A74EA7C2