InChI=1/C18H17N3O/c1-21-15-9-5-3-7-13(15)16(19-10-11-22)17-18(21)12-6-2-4-8-14(12)20-17/h2-9,22H,10-11H2,1H3,(H,19,20)/p+1/fC18H18N3O/h19-20H/q+1 6F03BFE2675D7F3C