InChI=1/C19H22N4O4/c1-4-10-22-17-15(18(25)23(11-5-2)19(22)26)20-16(21-17)13-6-8-14(9-7-13)27-12(3)24/h6-9H,4-5,10-11H2,1-3H3,(H,20,21)/f/h20H E980F0E19889562C