InChI=1/C18H18N4O/c19-17-15(11-21-18(20)22-17)9-14-7-4-8-16(10-14)23-12-13-5-2-1-3-6-13/h1-8,10-11H,9,12H2,(H4,19,20,21,22)/f/h19-20H2 83518ABECE767ED0