InChI=1/C20H21BrN4O5/c21-16-10-15(25(27)28)2-3-17(16)22-20(26)12-24-7-5-23(6-8-24)11-14-1-4-18-19(9-14)30-13-29-18/h1-4,9-10H,5-8,11-13H2,(H,22,26)/p+1/fC20H22BrN4O5/h22-23H/q+1 CB1C89396AE0E887