InChI=1/C17H19N3/c1-2-10-5-11-7-12(6-10)16-14(8-11)20-15-9-19-4-3-13(15)17(16)18/h3-5,9,11-12H,2,6-8H2,1H3,(H2,18,20)/t11-,12+/m0/s1/f/h18H2 B77FFF4C5AB7ACA8