InChI=1S/C12H26N6O3/c13-6-2-1-5-9(11(20)21)18-10(19)8(14)4-3-7-17-12(15)16/h8-9H,1-7,13-14H2,(H,18,19)(H,20,21)(H4,15,16,17)/t8-,9-/m0/s1