InChI=1/C20H20N4O2/c1-10-6-5-7-11(2)15(10)22-19-21-13-9-8-12-14(16(13)23-19)17(25)24-18(26)20(12,3)4/h5-9H,1-4H3,(H2,21,22,23)(H,24,25,26)/f/h21-22,24H 73CA48E3A6CDCBC1