InChI=1/C18H18N4/c1-19-17-15-8-4-5-9-16(15)20-18(21-17)22-11-10-13-6-2-3-7-14(13)12-22/h2-9H,10-12H2,1H3,(H,19,20,21)/f/h19H 15A2A6DBB08C7D37