InChI=1/C20H23FN2O/c21-19-8-6-16(7-9-19)14-20(24)22-11-3-12-23-13-10-17-4-1-2-5-18(17)15-23/h1-2,4-9H,3,10-15H2,(H,22,24)/f/h22H B694786477EA050F