InChI=1/C18H17N3O2/c1-12-7-8-14-16(22)15(11-20-17(14)21-12)18(23)19-10-9-13-5-3-2-4-6-13/h2-8,11H,9-10H2,1H3,(H,19,23)(H,20,21,22)/p-1/fC18H16N3O2/h19H/q-1 D9027D1760C21CE8