InChI=1/C15H18N4O4/c1-18(2)13(14-8-5-9-23-14)10-16-15(20)17-11-6-3-4-7-12(11)19(21)22/h3-9,13H,10H2,1-2H3,(H2,16,17,20)/p+1/t13-/m0/s1/fC15H19N4O4/h16-18H/q+1 CE2E26458BE3C889