InChI=1S/C12H17N5O5/c1-15-4-17(11-8(20)7(19)5(3-18)22-11)9-6(15)10(21)16(2)12(13)14-9/h4-5,7-8,11,18-19H,3H2,1-2H3,(H2,13,14)/t5-,7-,8-,11-/m1/s1