InChI=1/C20H23N3O/c1-20(2)11-15-18(17(24)12-20)19(16-9-6-10-23(16)3)22-14-8-5-4-7-13(14)21-15/h4-10,19,21-22H,11-12H2,1-3H3/t19-/m0/s1 A4FEB9A50B1165C3