InChI=1S/C23H23Br2NO5/c24-18-10-15(12-21(28)29)11-19(25)22(18)31-16-6-7-20(27)17(13-16)23(30)26-9-8-14-4-2-1-3-5-14/h1-7,10-11,13,21,23,26-30H,8-9,12H2