InChI=1/C21H26N4O4/c1-13(2)19(15-8-9-17-18(12-15)29-11-10-28-17)23-21(27)25-24-20(26)22-16-7-5-4-6-14(16)3/h4-9,12-13,19H,10-11H2,1-3H3,(H2,22,24,26)(H2,23,25,27)/t19-/m0/s1/f/h22-25H	27FBFDF50B95D278