InChI=1/C20H20N4O/c1-3-23-17-11-10-15(12-18(17)24(4-2)20(23)25)19-16(13-21-22-19)14-8-6-5-7-9-14/h5-13H,3-4H2,1-2H3,(H,21,22)/f/h21H 5BA46EE0F7F0201C