InChI=1/C15H20N4O3/c1-4-18(9-11(2)8-16)10-15(20)17-13-6-5-12(3)14(7-13)19(21)22/h5-7,11H,4,9-10H2,1-3H3,(H,17,20)/t11-/m1/s1/f/h17H A1698E320DF4EEB8