InChI=1/C21H20N4O2/c1-13-18(20(22)25-21(23)24-13)8-9-19(26)16-10-15(11-17(12-16)27-2)14-6-4-3-5-7-14/h3-7,10-12,19,26H,1-2H3,(H4,22,23,24,25)/t19-/m1/s1/f/h22-23H2 04058FE3F890E8A2