InChI=1/C15H18N4O4/c1-10(2)18-14(6-7-16-18)17-15(20)9-23-13-5-4-11(3)8-12(13)19(21)22/h4-8,10H,9H2,1-3H3,(H,17,20)/f/h17H 9CD9DA533B66AC10