InChI=1/C16H24N4O/c1-11-7-12(2)10-20(9-11)15-18-14(21)13(8-17)16(19-15)5-3-4-6-16/h11-13H,3-7,9-10H2,1-2H3,(H,18,19,21)/t11-,12-,13+/m1/s1/f/h19H CB9D8C79D5E8F512