InChI=1/C20H18F2N2O4/c1-20(2)15(16(20)19(27)28)18(26)23-12-5-3-4-10(8-12)17(25)24-14-7-6-11(21)9-13(14)22/h3-9,15-16H,1-2H3,(H,23,26)(H,24,25)(H,27,28)/p-1/t15-,16-/m0/s1/fC20H17F2N2O4/h23-24H/q-1 AE29A517FB1B1ECF