InChI=1/C21H23N3O2/c1-26-20-14-19-17(7-8-22-19)13-18(20)21(25)24-11-9-23(10-12-24)15-16-5-3-2-4-6-16/h2-8,13-14,22H,9-12,15H2,1H3/p+1/fC21H24N3O2/h23H/q+1 253D96EC16D4FEDA