InChI=1/C18H22N4O/c1-4-6-13-8-12(9-14(7-5-2)16(13)23-3)10-15-11-21-18(20)22-17(15)19/h4-9,11H,10H2,1-3H3,(H4,19,20,21,22)/b6-4+,7-5+/f/h19-20H2 6F1B29441EB668B6