InChI=1/C19H21N3O2/c23-19-14-24-18-12-15(6-7-17(18)20-19)13-21-8-10-22(11-9-21)16-4-2-1-3-5-16/h1-7,12H,8-11,13-14H2,(H,20,23)/f/h20H 286CCB2B035CC724