InChI=1/C18H17N3O2/c1-11-2-4-15-13(8-11)14-10-21(7-6-16(14)20-15)18(23)12-3-5-17(22)19-9-12/h2-5,8-9,20H,6-7,10H2,1H3,(H,19,22)/f/h19H 56CE40D10A07EAE8