InChI=1/C16H19N3O/c1-12-5-2-3-7-15(12)19-16(20)14(10-17)9-13-6-4-8-18-11-13/h4,6,8-9,11-12,15H,2-3,5,7H2,1H3,(H,19,20)/b14-9+/t12-,15-/m0/s1/f/h19H E6E094D875B3361A