InChI=1/C20H20N4O2/c1-11(2)25-20-15-8-6-13(9-14(15)10-22-23-20)17-12(3)5-7-16-18(17)26-24-19(16)21-4/h5-11H,1-4H3,(H,21,24)/f/h21H 6AB368D7DEB0F571