InChI=1/C21H20N4O2/c26-21(18-13-15-5-1-2-6-17(15)27-18)22-16-10-8-14(9-11-16)20-24-23-19-7-3-4-12-25(19)20/h1-2,5-6,8-11,18H,3-4,7,12-13H2,(H,22,26)/t18-/m1/s1/f/h22H EEBD3C29512F02F1