InChI=1/C14H15BrN2O6/c1-5-8(14(16)18)17-23-9(5)6-7(15)11(20-3)13-12(10(6)19-2)21-4-22-13/h5,9H,4H2,1-3H3,(H2,16,18)/t5-,9-/m1/s1/f/h16H2 B9FE48B958EB55EE