InChI=1/C12H20N4O2/c1-9-13-14-10(15(9)3)7-16-6-4-5-12(2,8-16)11(17)18/h4-8H2,1-3H3,(H,17,18)/t12-/m0/s1/f/h16H 00DCC71D1EFCD554