InChI=1/C18H19N3O2/c1-12-5-7-13(8-6-12)16(23)11-14-3-2-4-15-17(14)21-18(20-15)19-9-10-22/h2-8,22H,9-11H2,1H3,(H2,19,20,21)/p+1/fC18H20N3O2/h19-21H/q+1 B931A1110954F650