InChI=1S/C9H16N2O6/c1-4(12)7(9(16)17)11-8(15)5(10)2-3-6(13)14/h4-5,7,12H,2-3,10H2,1H3,(H,11,15)(H,13,14)(H,16,17)/t4-,5+,7+/m1/s1