InChI=1S/C11H20N2O4/c1-3-6(2)9(12)10(15)13-5-7(14)4-8(13)11(16)17/h6-9,14H,3-5,12H2,1-2H3,(H,16,17)/t6-,7+,8-,9-/m0/s1