InChI=1/C20H19N3O/c1-13-4-6-15(3)17(9-13)11-23-20(24)19-10-16-8-14(2)5-7-18(16)22(19)12-21-23/h4-10,12H,11H2,1-3H3 8BE9EB9CEB4EB490