InChI=1S/C19H20BrNO5S/c20-15-16(26-10-14(22)23)18(19(24)25)27-17(15)11-5-4-8-13(9-11)21-12-6-2-1-3-7-12/h4-5,8-9,12,21H,1-3,6-7,10H2,(H,22,23)(H,24,25)