InChI=1/C22H21FN2O/c1-25(15-16-6-5-9-19(14-16)22(24)26)21(17-7-3-2-4-8-17)18-10-12-20(23)13-11-18/h2-14,21H,15H2,1H3,(H2,24,26)/t21-/m0/s1/f/h24H2 BB8DFDFE6D0F25D3