InChI=1S/C9H14N4O7/c14-2-4(16)6(17)3(15)1-10-7-5(13-20)8(18)12-9(19)11-7/h3-4,6,14-17H,1-2H2,(H3,10,11,12,18,19)/t3-,4+,6-/m0/s1