InChI=1/C21H22N2/c22-21-11-9-18(10-12-21)6-4-5-15-23-16-13-20(14-17-23)19-7-2-1-3-8-19/h1-3,7-13H,5,14-17,22H2/p+1/fC21H23N2/h23H/q+1 B11F7FEAD55AB0DF