InChI=1/C13H18BrN3O2/c1-2-3-6-17(8-12(16)18)13(19)10-7-9(15)4-5-11(10)14/h4-5,7H,2-3,6,8,15H2,1H3,(H2,16,18)/f/h16H2 A8B6C194BC3D3E30