InChI=1/C23H20N4O2/c28-21-12-16(13-27(21)20-10-9-14-5-1-3-7-17(14)20)22-25-23(29-26-22)19-11-15-6-2-4-8-18(15)24-19/h1-8,11,16,20,24H,9-10,12-13H2/t16-,20-/m0/s1 7F2B458D4BAB3760