InChI=1/C16H20N4O/c1-21-12-4-2-3-10(8-12)7-11-5-6-14-13(9-11)15(17)20-16(18)19-14/h2-4,8,11H,5-7,9H2,1H3,(H4,17,18,19,20)/p+1/t11-/m0/s1/fC16H21N4O/h19H,17-18H2/q+1 880090F03CE3E105