InChI=1/C20H23BrN4O4/c21-17-7-6-16(29-17)20(28)22-12-18(26)23-15-8-10-25(11-9-15)13-19(27)24-14-4-2-1-3-5-14/h1-7,15H,8-13H2,(H,22,28)(H,23,26)(H,24,27)/p+1/fC20H24BrN4O4/h22-25H/q+1 85C2A7802C1905C4