InChI=1/C21H23FN2O4/c1-3-14-5-4-6-18(11-14)28-13-17(25)12-24-19(26)21(2,23-20(24)27)15-7-9-16(22)10-8-15/h4-11,17,25H,3,12-13H2,1-2H3,(H,23,27)/t17-,21-/m1/s1/f/h23H	1B8DCB84AD7DDFAC