InChI=1/C21H25F4NO3/c1-13-9-26(10-14(2)18(13)27)12-20(28,21(23,24)25)11-19(3,4)16-8-15(22)6-7-17(16)29-5/h6-10,28H,11-12H2,1-5H3/t20-/m0/s1 2B356A966142BBF1