InChI=1/C21H25FN2O/c22-18-5-7-19(8-6-18)24-14-12-23(13-15-24)11-9-21-20-4-2-1-3-17(20)10-16-25-21/h1-8,21H,9-16H2/t21-/m0/s1 186B82C3EB580741