InChI=1/C19H17BrN4O4/c1-10-16(18(27)24-21-9-11-3-2-4-12(20)7-11)17(23-19(28)22-10)14-6-5-13(25)8-15(14)26/h2-9,17,25-26H,1H3,(H,24,27)(H2,22,23,28)/b21-9+/t17-/m0/s1/f/h22-24H B6948FFC4A7AD61D