InChI=1/C22H21F4NO3/c1-20(2,16-8-7-14(23)11-19(16)29)12-21(30,22(24,25)26)13-27-10-9-18(28)15-5-3-4-6-17(15)27/h3-11,29-30H,12-13H2,1-2H3/t21-/m0/s1 DDE8CD5054C8B5A1