InChI=1S/C12H18N4O3/c17-5-8-3-16(4-9(8)18)2-7-1-13-11-10(7)14-6-15-12(11)19/h1,6,8-11,13,17-18H,2-5H2,(H,14,15,19)/p+1/t8-,9+,10?,11?/m1/s1