InChI=1S/C19H23N3O/c1-3-22(4-2)19(23)13-8-15-14-6-5-7-16-18(14)12(10-20-16)9-17(15)21-11-13/h5-8,10,13,17,20-21H,3-4,9,11H2,1-2H3