InChI=1/C18H26N4O4/c1-12-10-22(11-13(2)26-12)17(24)15-4-6-16(7-5-15)21-18(25)20-9-8-19-14(3)23/h4-7,12-13H,8-11H2,1-3H3,(H,19,23)(H2,20,21,25)/t12-,13-/m1/s1/f/h19-21H 30DA28EFF0AB0B07