InChI=1/C16H16BrNO4S/c1-3-21-16(20)15-10(2)8-14(23-15)18-13(19)9-22-12-6-4-11(17)5-7-12/h4-8H,3,9H2,1-2H3,(H,18,19)/f/h18H A4F803751330C335