InChI=1S/C12H21N3O7/c13-6(10(17)18)2-1-3-8(12(21)22)15-9(16)5-4-7(14)11(19)20/h6-8H,1-5,13-14H2,(H,15,16)(H,17,18)(H,19,20)(H,21,22)/t6-,7+,8+/m0/s1