InChI=1/C16H18N6O4/c1-9-16(26)22(11-5-3-2-4-6-11)21-12(17-9)13(23)19-20-15(25)14(24)18-10-7-8-10/h2-6,9-10H,7-8H2,1H3,(H,17,21)(H,18,24)(H,19,23)(H,20,25)/t9-/m0/s1/f/h17-20H E3DF5B8484093537