InChI=1S/C22H24BrFO4/c1-2-3-4-5-6-13-27-21(25)16-7-9-17(10-8-16)22(26)28-15-18-14-19(24)11-12-20(18)23/h7-12,14H,2-6,13,15H2,1H3