InChI=1/C21H23FN2O3/c22-17-8-4-7-16(13-17)21(25)14-20(15-5-2-1-3-6-15)23-18-9-11-19(12-10-18)24(26)27/h4,7-13,15,20,23H,1-3,5-6,14H2/t20-/m0/s1 CA03D00C532077F9