InChI=1/C16H22N4O4/c1-21-6-7-24-13-10(4-5-12(22-2)14(13)23-3)8-11-9-19-16(18)20-15(11)17/h4-5,9H,6-8H2,1-3H3,(H4,17,18,19,20)/p+1/fC16H23N4O4/h19H,17-18H2/q+1 C3A4AEB49473282B