InChI=1/C21H26N4O4/c1-14(2)15-3-5-16(6-4-15)18(26)23-11-9-22(10-12-23)13-24-19(27)20(28)25(21(24)29)17-7-8-17/h3-6,14,17H,7-13H2,1-2H3 EE38BC1DC392A668