InChI=1/C22H14BrNO4/c1-13-18(28-22(26)15-2-4-16(23)5-3-15)7-6-17-20(25)19(27-21(13)17)12-14-8-10-24-11-9-14/h2-12H,1H3/b19-12- D4FF317350DD268A