InChI=1/C15H13BrN2O3/c16-12-9-10(18(19)20)5-6-14(12)17-13-7-8-21-15-4-2-1-3-11(13)15/h1-6,9,13,17H,7-8H2/t13-/m0/s1 A6266A646738A8C4