InChI=1S/C11H21N3O4/c1-6(2)5-8(11(17)18)14-10(16)7(12)3-4-9(13)15/h6-8H,3-5,12H2,1-2H3,(H2,13,15)(H,14,16)(H,17,18)/t7-,8-/m0/s1